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2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 | #include "ds4.h"
#include "ds4_distributed.h"
#include "ds4_gpu_args.h"
#include "ds4_tp.h"
#include "ds4_help.h"
#include "linenoise.h"
/* ds4 CLI.
*
* One-shot mode builds a single model-family chat prompt and exits. Interactive
* mode keeps a rendered token transcript plus one ds4_session, so follow-up
* turns reuse the live Metal KV checkpoint just like the server does. The CLI
* deliberately keeps policy here and leaves graph/cache mechanics inside the
* engine API. */
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <signal.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <time.h>
#include <unistd.h>
static bool cli_env_flag_enabled(const char *name, bool defval) {
const char *v = getenv(name);
if (!v || !v[0]) return defval;
return strcmp(v, "0") != 0;
}
static bool cli_splitkv_spec_requested(void) {
if (cli_env_flag_enabled("DS4_CUDA_NO_SPLITKV_SPEC", false)) return false;
return cli_env_flag_enabled("DS4_CUDA_SPLITKV_SPEC", false);
}
static bool cli_greedy_fast_attention_requested(void) {
if (!cli_env_flag_enabled("DS4_CUDA_NO_GREEDY_SPLITKV", false) &&
cli_env_flag_enabled("DS4_CUDA_GREEDY_SPLITKV", false))
{
return true;
}
if (!cli_env_flag_enabled("DS4_CUDA_NO_GREEDY_VEC4", false) &&
cli_env_flag_enabled("DS4_CUDA_GREEDY_VEC4", false))
{
return true;
}
return false;
}
static bool cli_greedy_argmax_requested(bool speculative_requested) {
if (cli_greedy_fast_attention_requested()) return true;
if (speculative_requested) return false;
return cli_env_flag_enabled("DS4_CUDA_GREEDY_TOP1", true);
}
typedef struct {
const char *prompt;
const char *system;
bool raw_prompt;
int n_predict;
int ctx_size;
float temperature;
float top_p;
float min_p;
bool temperature_set;
bool top_p_set;
bool min_p_set;
uint64_t seed;
bool dump_tokens;
const char *dump_logits_path;
const char *dump_logprobs_path;
int dump_logprobs_top_k;
int decode_consistency_tokens;
const char *perplexity_file_path;
const char *imatrix_dataset_path;
const char *imatrix_output_path;
int imatrix_max_prompts;
int imatrix_max_tokens;
ds4_think_mode think_mode;
bool head_test;
bool first_token_test;
bool metal_graph_test;
bool metal_graph_full_test;
bool metal_graph_prompt_test;
} cli_generation_options;
typedef struct {
ds4_engine_options engine;
ds4_dist_options *dist;
cli_generation_options gen;
char *prompt_owned;
bool inspect;
/* CLI flag wiring: raw argv values for --gpu-vram and --gpu-devices.
* Resolved post-parse via parse_gpu_vram_arg(). */
const char *gpu_vram_arg;
const char *gpu_devices_arg;
} cli_config;
static volatile sig_atomic_t cli_interrupted;
static volatile sig_atomic_t cli_dist_busy;
static volatile sig_atomic_t cli_dist_notice_printed;
static const char cli_dist_drain_msg[] =
"\nds4: stopping after the distributed cluster finishes the current token/chunk...\n";
static void cli_sigint_handler(int sig) {
(void)sig;
cli_interrupted = 1;
if (cli_dist_busy && !cli_dist_notice_printed) {
cli_dist_notice_printed = 1;
ssize_t ignored = write(STDERR_FILENO,
cli_dist_drain_msg,
sizeof(cli_dist_drain_msg) - 1u);
(void)ignored;
}
}
static bool cli_interrupt_requested(void) {
return cli_interrupted != 0;
}
static void cli_interrupt_clear(void) {
cli_interrupted = 0;
cli_dist_notice_printed = 0;
}
static bool cli_distributed_coordinator(const cli_config *cfg) {
return cfg && cfg->engine.distributed.role == DS4_DISTRIBUTED_COORDINATOR;
}
static void cli_dist_busy_set(const cli_config *cfg, bool busy) {
if (!cli_distributed_coordinator(cfg)) return;
cli_dist_busy = busy ? 1 : 0;
if (!busy) cli_dist_notice_printed = 0;
}
static int cli_wait_distributed_route(const cli_config *cfg, ds4_session *session) {
if (!cli_distributed_coordinator(cfg)) return 0;
char err[256] = {0};
char last[256] = {0};
unsigned ticks = 0;
const struct timespec delay = {0, 250000000L};
for (;;) {
int ready = ds4_session_distributed_route_ready(session, err, sizeof(err));
if (ready > 0) {
if (ticks) fprintf(stderr, "ds4: distributed route ready\n");
return 0;
}
if (ready < 0) {
fprintf(stderr,
"ds4: distributed route readiness failed: %s\n",
err[0] ? err : "unknown error");
return 1;
}
const char *why = err[0] ? err : "route incomplete";
if (strcmp(last, why) != 0 || (ticks % 20u) == 0) {
fprintf(stderr, "ds4: waiting for distributed route: %s\n", why);
snprintf(last, sizeof(last), "%s", why);
}
nanosleep(&delay, NULL);
ticks++;
}
}
static void usage(FILE *fp, const char *topic) {
ds4_help_print(fp, DS4_HELP_DS4, topic);
}
static int parse_int(const char *s, const char *opt) {
char *end = NULL;
long v = strtol(s, &end, 10);
if (s[0] == '\0' || *end != '\0' || v <= 0 || v > INT32_MAX) {
fprintf(stderr, "ds4: invalid value for %s: %s\n", opt, s);
exit(2);
}
return (int)v;
}
static int parse_nonnegative_int(const char *s, const char *opt) {
char *end = NULL;
long v = strtol(s, &end, 10);
if (s[0] == '\0' || *end != '\0' || v < 0 || v > INT32_MAX) {
fprintf(stderr, "ds4: invalid value for %s: %s\n", opt, s);
exit(2);
}
return (int)v;
}
static uint64_t parse_u64(const char *s, const char *opt) {
char *end = NULL;
unsigned long long v = strtoull(s, &end, 10);
if (s[0] == '\0' || *end != '\0' || v == 0) {
fprintf(stderr, "ds4: invalid value for %s: %s\n", opt, s);
exit(2);
}
return (uint64_t)v;
}
static float parse_float_range(const char *s, const char *opt, float min, float max) {
char *end = NULL;
float v = strtof(s, &end);
if (s[0] == '\0' || *end != '\0' || !isfinite(v) || v < min || v > max) {
fprintf(stderr, "ds4: invalid value for %s: %s\n", opt, s);
exit(2);
}
return v;
}
static ds4_backend parse_backend(const char *s) {
if (!strcmp(s, "metal")) return DS4_BACKEND_METAL;
#ifdef DS4_ROCM_BUILD
if (!strcmp(s, "rocm")) return DS4_BACKEND_CUDA;
#else
if (!strcmp(s, "cuda")) return DS4_BACKEND_CUDA;
#endif
if (!strcmp(s, "cpu")) return DS4_BACKEND_CPU;
fprintf(stderr, "ds4: invalid backend: %s\n", s);
#ifdef DS4_ROCM_BUILD
fprintf(stderr, "ds4: valid backends are: metal, rocm, cpu\n");
#else
fprintf(stderr, "ds4: valid backends are: metal, cuda, cpu\n");
#endif
exit(2);
}
static ds4_backend default_backend(void) {
#ifdef DS4_NO_GPU
return DS4_BACKEND_CPU;
#elif defined(__APPLE__)
return DS4_BACKEND_METAL;
#else
return DS4_BACKEND_CUDA;
#endif
}
static void log_context_memory(ds4_backend backend,
int ctx_size,
uint32_t prefill_chunk,
bool ssd_streaming) {
ds4_context_memory m =
ds4_context_memory_estimate_with_prefill_mode(backend,
ctx_size,
prefill_chunk,
ssd_streaming);
const uint64_t kv_bytes = m.raw_bytes + m.compressed_bytes;
const uint64_t total_bytes = kv_bytes + m.scratch_bytes;
const bool color = ds4_log_is_tty(stderr);
const char *green = color ? "\x1b[32m" : "";
const char *bright_green = color ? "\x1b[1;32m" : "";
const char *reset = color ? "\x1b[0m" : "";
fprintf(stderr,
"%sds4: memory: KV %.2f GiB (raw %.2f + compressed %.2f) "
"+ buffers %.2f GiB = %s%.2f GiB context%s\n",
green,
(double)kv_bytes / 1073741824.0,
(double)m.raw_bytes / 1073741824.0,
(double)m.compressed_bytes / 1073741824.0,
(double)m.scratch_bytes / 1073741824.0,
bright_green,
(double)total_bytes / 1073741824.0,
reset);
fprintf(stderr,
"%sds4: memory detail: ctx=%d prefill_cap=%u raw_kv_rows=%u "
"compressed_kv_rows=%u backend=%s%s\n",
green,
ctx_size,
m.prefill_cap,
m.raw_cap,
m.comp_cap,
ds4_backend_name(backend),
reset);
}
static ds4_think_mode cli_effective_think_mode(const cli_generation_options *gen) {
return ds4_think_mode_for_context(gen->think_mode, gen->ctx_size);
}
static bool cli_think_max_downgraded(const cli_generation_options *gen) {
return gen->think_mode == DS4_THINK_MAX &&
cli_effective_think_mode(gen) != DS4_THINK_MAX;
}
static void cli_warn_think_max_downgraded(const cli_generation_options *gen, const char *name) {
if (!cli_think_max_downgraded(gen)) return;
ds4_log(stderr,
DS4_LOG_WARNING,
"ds4: warning: %s needs --ctx >= %u; ctx=%d uses normal thinking instead\n",
name,
ds4_think_max_min_context(),
gen->ctx_size);
}
static double cli_now_sec(void) {
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (double)ts.tv_sec + (double)ts.tv_nsec * 1.0e-9;
}
static char *read_prompt_file(const char *path, bool fatal);
typedef struct {
int base_tokens;
int input_tokens;
bool use_color;
bool finished;
} cli_prefill_progress;
static void cli_prefill_progress_cb(void *ud, const char *event, int current, int total) {
(void)total;
cli_prefill_progress *p = ud;
if (!p || !event || p->input_tokens <= 0) return;
const bool is_display =
strcmp(event, "prefill_display") == 0;
if (strcmp(event, "prefill_chunk") && !is_display) return;
if (is_display && !p->use_color) return;
int processed = current - p->base_tokens;
if (processed < 0) processed = 0;
if (processed > p->input_tokens) processed = p->input_tokens;
double pct = 100.0 * (double)processed / (double)p->input_tokens;
if (pct > 100.0) pct = 100.0;
const bool complete = processed >= p->input_tokens;
if (complete && p->finished) return;
if (p->use_color) {
fputc('\r', stderr);
ds4_log(stderr,
DS4_LOG_PREFILL,
"processing %d input tokens: %d/%d (%.1f%%)",
p->input_tokens,
processed,
p->input_tokens,
pct);
fputs("\x1b[K", stderr);
if (complete) fputc('\n', stderr);
} else {
fprintf(stderr,
"processing %d input tokens: %d/%d (%.1f%%)\n",
p->input_tokens,
processed,
p->input_tokens,
pct);
}
if (complete) p->finished = true;
fflush(stderr);
}
static bool is_rendered_chat_prompt(const char *prompt) {
static const char *prefixes[] = {
"<｜begin▁of▁sentence｜>",
"<｜User｜>",
"[gMASK]",
"<sop>",
"<|system|>",
"<|user|>",
"<|assistant|>",
"<|observation|>",
};
if (!prompt) return false;
for (size_t i = 0; i < sizeof(prefixes) / sizeof(prefixes[0]); i++) {
size_t n = strlen(prefixes[i]);
if (strncmp(prompt, prefixes[i], n) == 0) return true;
}
return false;
}
typedef struct {
ds4_engine *engine;
FILE *fp;
bool format_thinking;
bool in_think;
bool color_open;
bool use_color;
bool last_output_newline;
char pending[16];
size_t pending_len;
} token_printer;
static bool bytes_has_prefix(const char *p, size_t n, const char *prefix) {
size_t plen = strlen(prefix);
return n >= plen && memcmp(p, prefix, plen) == 0;
}
static bool bytes_is_partial_prefix(const char *p, size_t n, const char *prefix) {
size_t plen = strlen(prefix);
return n < plen && memcmp(prefix, p, n) == 0;
}
static void token_printer_set_grey(token_printer *p) {
if (p->use_color && !p->color_open) {
fputs("\x1b[90m", p->fp);
p->color_open = true;
}
}
static void token_printer_reset_color(token_printer *p) {
if (p->use_color && p->color_open) {
fputs("\x1b[0m", p->fp);
p->color_open = false;
}
}
static void token_printer_write_char(token_printer *p, char c) {
if (p->in_think) token_printer_set_grey(p);
fputc((unsigned char)c, p->fp);
p->last_output_newline = c == '\n';
}
static void token_printer_process(token_printer *p, const char *text, size_t len, bool finish) {
const char *think_open = "<think>";
const char *think_close = "</think>";
size_t total = p->pending_len + len;
char *buf = malloc(total ? total : 1);
if (!buf) return;
if (p->pending_len) memcpy(buf, p->pending, p->pending_len);
if (len) memcpy(buf + p->pending_len, text, len);
p->pending_len = 0;
size_t i = 0;
while (i < total) {
const char *cur = buf + i;
const size_t rem = total - i;
if (bytes_has_prefix(cur, rem, think_open)) {
p->in_think = true;
i += strlen(think_open);
continue;
}
if (bytes_has_prefix(cur, rem, think_close)) {
p->in_think = false;
token_printer_reset_color(p);
if (!p->last_output_newline) {
fputc('\n', p->fp);
p->last_output_newline = true;
}
i += strlen(think_close);
continue;
}
if (!finish && cur[0] == '<' &&
(bytes_is_partial_prefix(cur, rem, think_open) ||
bytes_is_partial_prefix(cur, rem, think_close)))
{
if (rem < sizeof(p->pending)) {
memcpy(p->pending, cur, rem);
p->pending_len = rem;
}
break;
}
token_printer_write_char(p, cur[0]);
i++;
}
free(buf);
}
static void token_printer_finish(token_printer *p) {
if (p->format_thinking) {
token_printer_process(p, NULL, 0, true);
token_printer_reset_color(p);
}
fflush(p->fp);
}
static void generation_done(void *ud) {
token_printer *p = ud;
token_printer_finish(p);
if (!p->last_output_newline) {
fputc('\n', p->fp);
p->last_output_newline = true;
}
fflush(p->fp);
}
static void token_printer_write_text(token_printer *p, const char *text, size_t len) {
if (p->format_thinking) {
token_printer_process(p, text, len, false);
} else if (len) {
fwrite(text, 1, len, p->fp);
p->last_output_newline = text[len - 1] == '\n';
}
}
static void print_generated_token(void *ud, int token) {
token_printer *p = ud;
size_t len = 0;
char *text = ds4_token_text(p->engine, token, &len);
token_printer_write_text(p, text, len);
fflush(p->fp);
free(text);
}
static void build_prompt(ds4_engine *engine, const cli_generation_options *gen, ds4_tokens *out) {
if (gen->raw_prompt) {
ds4_tokenize_text(engine, gen->prompt ? gen->prompt : "", out);
} else if (is_rendered_chat_prompt(gen->prompt)) {
ds4_tokenize_rendered_chat(engine, gen->prompt, out);
} else {
ds4_encode_chat_prompt(engine, gen->system, gen->prompt,
cli_effective_think_mode(gen), out);
}
}
static void cli_apply_model_sampling_defaults(
ds4_engine *engine,
cli_generation_options *gen) {
if (!engine || !gen || !ds4_engine_is_glm_dsa(engine)) return;
if (!gen->temperature_set) gen->temperature = 1.0f;
if (!gen->top_p_set) gen->top_p = 0.95f;
if (!gen->min_p_set) gen->min_p = 0.0f;
}
static int run_sampled_generation(ds4_engine *engine, const cli_config *cfg, const ds4_tokens *prompt) {
ds4_session *session = NULL;
if (ds4_session_create(&session, engine, cfg->gen.ctx_size) != 0) {
fprintf(stderr, "ds4: sampled CLI generation requires a session backend\n");
return 1;
}
if (cli_wait_distributed_route(cfg, session) != 0) {
ds4_session_free(session);
return 1;
}
/* Pay the one-time first-submission GPU cost before the prefill timer
* starts (matches the TP worker's startup warmup). */
ds4_session_gpu_warmup(session);
char err[160];
ds4_think_mode think_mode = cli_effective_think_mode(&cfg->gen);
token_printer printer = {
.engine = engine,
.fp = stdout,
.format_thinking = ds4_think_mode_enabled(think_mode),
.in_think = ds4_think_mode_enabled(think_mode),
.use_color = isatty(fileno(stdout)) != 0,
.last_output_newline = true,
};
cli_prefill_progress progress = {
.base_tokens = 0,
.input_tokens = prompt->len,
.use_color = ds4_log_is_tty(stderr),
};
const double t_prefill0 = cli_now_sec();
ds4_session_set_progress(session, cli_prefill_progress_cb, &progress);
ds4_session_set_display_progress(session,
progress.use_color ? cli_prefill_progress_cb : NULL,
progress.use_color ? &progress : NULL);
cli_dist_busy_set(cfg, true);
int sync_rc = ds4_session_sync(session, prompt, err, sizeof(err));
cli_dist_busy_set(cfg, false);
if (sync_rc != 0) {
ds4_session_set_progress(session, NULL, NULL);
ds4_session_set_display_progress(session, NULL, NULL);
fprintf(stderr, "ds4: prompt processing failed: %s\n", err);
ds4_session_free(session);
return 1;
}
ds4_session_set_progress(session, NULL, NULL);
ds4_session_set_display_progress(session, NULL, NULL);
const double t_prefill1 = cli_now_sec();
int max_tokens = cfg->gen.n_predict;
int room = ds4_session_ctx(session) - ds4_session_pos(session);
if (room <= 1) max_tokens = 0;
else if (max_tokens > room - 1) max_tokens = room - 1;
uint64_t rng = cfg->gen.seed ? cfg->gen.seed :
((uint64_t)time(NULL) ^ ((uint64_t)getpid() << 32) ^ (uint64_t)clock());
int generated = 0;
const bool speculative_argmax = cfg->gen.temperature <= 0.0f &&
((ds4_engine_mtp_draft_tokens(engine) > 1 &&
getenv("DS4_MTP_SPEC_DISABLE") == NULL) ||
cli_splitkv_spec_requested());
const bool greedy_argmax = cfg->gen.temperature <= 0.0f &&
cli_greedy_argmax_requested(speculative_argmax);
bool have_greedy_next = false;
int greedy_next = -1;
const double t_decode0 = cli_now_sec();
while (generated < max_tokens && !cli_interrupt_requested()) {
int token;
if (greedy_argmax && have_greedy_next) {
token = greedy_next;
have_greedy_next = false;
} else {
token = ds4_session_sample(session, cfg->gen.temperature, 0,
cfg->gen.top_p, cfg->gen.min_p, &rng);
}
if (ds4_token_is_stop_for_think_mode(engine, token, think_mode)) break;
int toks[17];
int ntok = 0;
if (cfg->gen.temperature <= 0.0f && ds4_engine_mtp_draft_tokens(engine) > 1 &&
getenv("DS4_MTP_SPEC_DISABLE") == NULL) {
cli_dist_busy_set(cfg, true);
ntok = ds4_session_eval_speculative_argmax(session,
token,
max_tokens - generated,
ds4_token_eos(engine),
toks,
(int)(sizeof(toks) / sizeof(toks[0])),
err,
sizeof(err));
cli_dist_busy_set(cfg, false);
if (ntok < 0) {
fprintf(stderr, "ds4: decode failed: %s\n", err);
ds4_session_free(session);
return 1;
}
} else {
size_t piece_len = 0;
char *piece = ds4_token_text(engine, token, &piece_len);
token_printer_write_text(&printer, piece, piece_len);
fflush(stdout);
free(piece);
generated++;
if (generated >= max_tokens || cli_interrupt_requested()) {
continue;
}
cli_dist_busy_set(cfg, true);
int eval_rc = ds4_session_eval(session, token, err, sizeof(err));
cli_dist_busy_set(cfg, false);
if (eval_rc != 0) {
fprintf(stderr, "ds4: decode failed: %s\n", err);
ds4_session_free(session);
return 1;
}
continue;
}
bool stop = false;
for (int j = 0; j < ntok; j++) {
if (ds4_token_is_stop_for_think_mode(engine, toks[j], think_mode)) {
stop = true;
break;
}
size_t piece_len = 0;
char *piece = ds4_token_text(engine, toks[j], &piece_len);
token_printer_write_text(&printer, piece, piece_len);
fflush(stdout);
free(piece);
generated++;
if (generated >= max_tokens) break;
}
if (stop) break;
}
const double t_decode1 = cli_now_sec();
generation_done(&printer);
if (cli_interrupt_requested()) cli_interrupt_clear();
const double prefill_s = t_prefill1 - t_prefill0;
const double decode_s = t_decode1 - t_decode0;
ds4_log(stderr,
DS4_LOG_TIMING,
"ds4: prefill: %.2f t/s, generation: %.2f t/s\n",
prefill_s > 0.0 ? (double)prompt->len / prefill_s : 0.0,
decode_s > 0.0 ? (double)generated / decode_s : 0.0);
ds4_session_free(session);
return 0;
}
static bool json_utf8_valid(const char *s, size_t n) {
size_t i = 0;
while (i < n) {
unsigned char c = (unsigned char)s[i++];
if (c < 0x80) continue;
int need = 0;
if (c >= 0xc2 && c <= 0xdf) need = 1;
else if (c >= 0xe0 && c <= 0xef) need = 2;
else if (c >= 0xf0 && c <= 0xf4) need = 3;
else return false;
if (i + (size_t)need > n) return false;
unsigned char c1 = (unsigned char)s[i];
if (c == 0xe0 && c1 < 0xa0) return false;
if (c == 0xed && c1 >= 0xa0) return false;
if (c == 0xf0 && c1 < 0x90) return false;
if (c == 0xf4 && c1 >= 0x90) return false;
for (int j = 0; j < need; j++) {
unsigned char cc = (unsigned char)s[i + (size_t)j];
if ((cc & 0xc0) != 0x80) return false;
}
i += (size_t)need;
}
return true;
}
static void json_write_string(FILE *fp, const char *s, size_t n) {
bool valid_utf8 = json_utf8_valid(s, n);
fputc('"', fp);
for (size_t i = 0; i < n; i++) {
unsigned char c = (unsigned char)s[i];
if (c == '"' || c == '\\') {
fputc('\\', fp);
fputc((char)c, fp);
} else if (c == '\n') {
fputs("\\n", fp);
} else if (c == '\r') {
fputs("\\r", fp);
} else if (c == '\t') {
fputs("\\t", fp);
} else if (c < 0x20) {
fprintf(fp, "\\u%04x", (unsigned)c);
} else if (!valid_utf8 && c >= 0x80) {
/* Tokenizer pieces can be arbitrary byte fragments. The bytes
* array is authoritative; this escape keeps the JSON valid. */
fprintf(fp, "\\u%04x", (unsigned)c);
} else {
fputc((char)c, fp);
}
}
fputc('"', fp);
}
static void json_write_token(FILE *fp, ds4_engine *engine, int token) {
size_t n = 0;
char *text = ds4_token_text(engine, token, &n);
fprintf(fp, "{\"id\":%d,\"text\":", token);
json_write_string(fp, text, n);
fputs(",\"bytes\":[", fp);
for (size_t i = 0; i < n; i++) {
if (i) fputc(',', fp);
fprintf(fp, "%u", (unsigned)(unsigned char)text[i]);
}
fputc(']', fp);
fputc('}', fp);
free(text);
}
static int run_logits_dump(ds4_engine *engine, const cli_config *cfg, const ds4_tokens *prompt) {
ds4_session *session = NULL;
if (ds4_session_create(&session, engine, cfg->gen.ctx_size) != 0) {
fprintf(stderr, "ds4: --dump-logits requires a graph session backend\n");
return 1;
}
if (cli_wait_distributed_route(cfg, session) != 0) {
ds4_session_free(session);
return 1;
}
char err[160];
cli_prefill_progress progress = {
.base_tokens = 0,
.input_tokens = prompt->len,
.use_color = ds4_log_is_tty(stderr),
};
ds4_session_set_progress(session, cli_prefill_progress_cb, &progress);
ds4_session_set_display_progress(session,
progress.use_color ? cli_prefill_progress_cb : NULL,
progress.use_color ? &progress : NULL);
if (ds4_session_sync(session, prompt, err, sizeof(err)) != 0) {
ds4_session_set_progress(session, NULL, NULL);
ds4_session_set_display_progress(session, NULL, NULL);
fprintf(stderr, "ds4: prompt processing failed: %s\n", err);
ds4_session_free(session);
return 1;
}
ds4_session_set_progress(session, NULL, NULL);
ds4_session_set_display_progress(session, NULL, NULL);
const int vocab = ds4_engine_vocab_size(engine);
float *logits = malloc((size_t)vocab * sizeof(logits[0]));
if (!logits) {
ds4_session_free(session);
return 1;
}
if (ds4_session_copy_logits(session, logits, vocab) != vocab) {
fprintf(stderr, "ds4: failed to copy session logits\n");
free(logits);
ds4_session_free(session);
return 1;
}
FILE *fp = fopen(cfg->gen.dump_logits_path, "wb");
if (!fp) {
fprintf(stderr, "ds4: failed to open --dump-logits file: %s\n", cfg->gen.dump_logits_path);
free(logits);
ds4_session_free(session);
return 1;
}
fprintf(fp, "{\n \"source\":\"ds4\",\n \"model\":");
json_write_string(fp, cfg->engine.model_path, strlen(cfg->engine.model_path));
fprintf(fp,
",\n \"backend\":\"%s\",\n \"quant_bits\":%d,\n"
" \"prompt_tokens\":%d,\n \"ctx\":%d,\n \"vocab\":%d,\n",
ds4_backend_name(cfg->engine.backend),
ds4_engine_routed_quant_bits(engine),
prompt->len,
cfg->gen.ctx_size,
vocab);
const int argmax = ds4_session_argmax(session);
fputs(" \"argmax_token\":", fp);
json_write_token(fp, engine, argmax);
fprintf(fp, ",\n \"argmax_logit\":%.9g,\n \"logits\":[", logits[argmax]);
for (int i = 0; i < vocab; i++) {
if (i) fputc(',', fp);
if ((i % 8) == 0) fputs("\n ", fp);
if (isfinite(logits[i])) {
fprintf(fp, "%.9g", logits[i]);
} else {
fputs("null", fp);
}
}
fputs("\n ]\n}\n", fp);
if (fclose(fp) != 0) {
fprintf(stderr, "ds4: failed to close --dump-logits file: %s\n", cfg->gen.dump_logits_path);
free(logits);
ds4_session_free(session);
return 1;
}
free(logits);
ds4_session_free(session);
return 0;
}
static int run_logprob_dump(ds4_engine *engine, const cli_config *cfg, const ds4_tokens *prompt) {
ds4_session *session = NULL;
if (ds4_session_create(&session, engine, cfg->gen.ctx_size) != 0) {
fprintf(stderr, "ds4: --dump-logprobs requires a graph session backend\n");
return 1;
}
if (cli_wait_distributed_route(cfg, session) != 0) {
ds4_session_free(session);
return 1;
}
char err[160];
cli_prefill_progress progress = {
.base_tokens = 0,
.input_tokens = prompt->len,
.use_color = ds4_log_is_tty(stderr),
};
ds4_session_set_progress(session, cli_prefill_progress_cb, &progress);
ds4_session_set_display_progress(session,
progress.use_color ? cli_prefill_progress_cb : NULL,
progress.use_color ? &progress : NULL);
if (ds4_session_sync(session, prompt, err, sizeof(err)) != 0) {
ds4_session_set_progress(session, NULL, NULL);
ds4_session_set_display_progress(session, NULL, NULL);
fprintf(stderr, "ds4: prompt processing failed: %s\n", err);
ds4_session_free(session);
return 1;
}
ds4_session_set_progress(session, NULL, NULL);
ds4_session_set_display_progress(session, NULL, NULL);
FILE *fp = fopen(cfg->gen.dump_logprobs_path, "wb");
if (!fp) {
fprintf(stderr, "ds4: failed to open --dump-logprobs file: %s\n", cfg->gen.dump_logprobs_path);
ds4_session_free(session);
return 1;
}
int k = cfg->gen.dump_logprobs_top_k > 0 ? cfg->gen.dump_logprobs_top_k : 20;
if (k > 128) k = 128;
ds4_token_score *scores = calloc((size_t)k, sizeof(scores[0]));
if (!scores) {
fclose(fp);
ds4_session_free(session);
return 1;
}
fprintf(fp, "{\n \"source\":\"ds4\",\n \"prompt_tokens\":%d,\n \"ctx\":%d,\n \"top_k\":%d,\n \"steps\":[\n",
prompt->len, cfg->gen.ctx_size, k);
int generated = 0;
int max_tokens = cfg->gen.n_predict;
int room = ds4_session_ctx(session) - ds4_session_pos(session);
if (room <= 1) max_tokens = 0;
else if (max_tokens > room - 1) max_tokens = room - 1;
for (; generated < max_tokens; generated++) {
int n = ds4_session_top_logprobs(session, scores, k);
int token = ds4_session_argmax(session);
if (generated) fputs(",\n", fp);
fprintf(fp, " {\"step\":%d,\"selected\":", generated);
json_write_token(fp, engine, token);
fputs(",\"top_logprobs\":[", fp);
for (int i = 0; i < n && scores[i].id >= 0; i++) {
if (i) fputc(',', fp);
fputs("{\"token\":", fp);
json_write_token(fp, engine, scores[i].id);
fprintf(fp, ",\"logit\":%.9g,\"logprob\":%.9g}", scores[i].logit, scores[i].logprob);
}
fputs("]}", fp);
if (ds4_token_is_stop(engine, token)) break;
if (ds4_session_eval(session, token, err, sizeof(err)) != 0) {
fprintf(stderr, "ds4: decode failed while dumping logprobs: %s\n", err);
free(scores);
fclose(fp);
ds4_session_free(session);
return 1;
}
}
fputs("\n ]\n}\n", fp);
if (fclose(fp) != 0) {
fprintf(stderr, "ds4: failed to close --dump-logprobs file: %s\n", cfg->gen.dump_logprobs_path);
free(scores);
ds4_session_free(session);
return 1;
}
free(scores);
ds4_session_free(session);
return 0;
}
static void print_diag_token(FILE *fp, ds4_engine *engine, int token) {
fputs("{\"token\":", fp);
json_write_token(fp, engine, token);
fputc('}', fp);
}
static void print_diag_top(FILE *fp, ds4_engine *engine, const char *label,
const ds4_token_score *scores, int n) {
fprintf(fp, "%s:", label);
for (int i = 0; i < n && scores[i].id >= 0; i++) {
fputc(' ', fp);
json_write_token(fp, engine, scores[i].id);
fprintf(fp, "@%.6g", scores[i].logit);
}
fputc('\n', fp);
}
static int run_decode_consistency(ds4_engine *engine, const cli_config *cfg,
const ds4_tokens *prompt) {
if (cfg->dist && cfg->dist->role != DS4_DISTRIBUTED_NONE) {
fprintf(stderr, "ds4: --decode-consistency is local-session only\n");
return 1;
}
if (cfg->gen.decode_consistency_tokens < 0) {
fprintf(stderr, "ds4: --decode-consistency requires a non-negative token count\n");
return 1;
}
const int vocab = ds4_engine_vocab_size(engine);
float *live_logits = malloc((size_t)vocab * sizeof(live_logits[0]));
float *fresh_logits = malloc((size_t)vocab * sizeof(fresh_logits[0]));
if (!live_logits || !fresh_logits) {
free(live_logits);
free(fresh_logits);
fprintf(stderr, "ds4: out of memory allocating diagnostic logits\n");
return 1;
}
ds4_tokens prefix = {0};
ds4_tokens_copy(&prefix, prompt);
ds4_session *live = NULL;
char err[160];
if (ds4_session_create(&live, engine, cfg->gen.ctx_size) != 0) {
fprintf(stderr, "ds4: --decode-consistency requires a graph session backend\n");
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return 1;
}
cli_prefill_progress progress = {
.base_tokens = 0,
.input_tokens = prompt->len,
.use_color = ds4_log_is_tty(stderr),
};
ds4_session_set_progress(live, cli_prefill_progress_cb, &progress);
ds4_session_set_display_progress(live,
progress.use_color ? cli_prefill_progress_cb : NULL,
progress.use_color ? &progress : NULL);
if (ds4_session_sync(live, prompt, err, sizeof(err)) != 0) {
ds4_session_set_progress(live, NULL, NULL);
ds4_session_set_display_progress(live, NULL, NULL);
fprintf(stderr, "ds4: prompt processing failed: %s\n", err);
ds4_session_free(live);
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return 1;
}
ds4_session_set_progress(live, NULL, NULL);
ds4_session_set_display_progress(live, NULL, NULL);
fprintf(stderr, "ds4: decode-consistency prompt_tokens=%d check_after=%d\n",
prompt->len, cfg->gen.decode_consistency_tokens);
for (int i = 0; i < cfg->gen.decode_consistency_tokens; i++) {
int token = ds4_session_argmax(live);
fprintf(stderr, "ds4: decode-consistency selected[%d]=", i);
print_diag_token(stderr, engine, token);
fputc('\n', stderr);
ds4_tokens_push(&prefix, token);
if (ds4_session_eval(live, token, err, sizeof(err)) != 0) {
fprintf(stderr, "ds4: decode failed during consistency check: %s\n", err);
ds4_session_free(live);
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return 1;
}
if (ds4_token_is_stop(engine, token)) break;
}
ds4_token_score live_top[10];
int live_top_n = ds4_session_top_logprobs(live, live_top, 10);
if (ds4_session_copy_logits(live, live_logits, vocab) != vocab) {
fprintf(stderr, "ds4: failed to copy live logits\n");
ds4_session_free(live);
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return 1;
}
ds4_session_free(live);
live = NULL;
ds4_session *fresh = NULL;
if (ds4_session_create(&fresh, engine, cfg->gen.ctx_size) != 0) {
fprintf(stderr, "ds4: failed to create fresh diagnostic session\n");
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return 1;
}
progress.input_tokens = prefix.len;
ds4_session_set_progress(fresh, cli_prefill_progress_cb, &progress);
ds4_session_set_display_progress(fresh,
progress.use_color ? cli_prefill_progress_cb : NULL,
progress.use_color ? &progress : NULL);
if (ds4_session_sync(fresh, &prefix, err, sizeof(err)) != 0) {
ds4_session_set_progress(fresh, NULL, NULL);
ds4_session_set_display_progress(fresh, NULL, NULL);
fprintf(stderr, "ds4: fresh prompt processing failed: %s\n", err);
ds4_session_free(fresh);
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return 1;
}
ds4_session_set_progress(fresh, NULL, NULL);
ds4_session_set_display_progress(fresh, NULL, NULL);
ds4_token_score fresh_top[10];
int fresh_top_n = ds4_session_top_logprobs(fresh, fresh_top, 10);
if (ds4_session_copy_logits(fresh, fresh_logits, vocab) != vocab) {
fprintf(stderr, "ds4: failed to copy fresh logits\n");
ds4_session_free(fresh);
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return 1;
}
ds4_session_free(fresh);
double ss = 0.0;
float max_abs = 0.0f;
int max_i = 0;
for (int i = 0; i < vocab; i++) {
float d = fabsf(live_logits[i] - fresh_logits[i]);
if (d > max_abs) {
max_abs = d;
max_i = i;
}
ss += (double)d * (double)d;
}
fprintf(stderr,
"ds4: decode-consistency compared prefix_tokens=%d vocab=%d "
"max_abs=%.9g at token=%d live=%.9g fresh=%.9g rms=%.9g\n",
prefix.len, vocab, max_abs, max_i,
live_logits[max_i], fresh_logits[max_i],
sqrt(ss / (double)vocab));
print_diag_top(stderr, engine, "ds4: live_top", live_top, live_top_n);
print_diag_top(stderr, engine, "ds4: fresh_top", fresh_top, fresh_top_n);
ds4_tokens_free(&prefix);
free(live_logits);
free(fresh_logits);
return live_top_n > 0 && fresh_top_n > 0 && live_top[0].id == fresh_top[0].id ? 0 : 1;
}
static int run_perplexity_file(ds4_engine *engine, const cli_config *cfg) {
char *text = read_prompt_file(cfg->gen.perplexity_file_path, true);
ds4_tokens tokens = {0};
ds4_tokenize_text(engine, text, &tokens);
free(text);
/* Seed the graph with enough real context to stay on the normal Metal
* prefill path; scoring starts immediately after this fixed prefix. */
const int prefix_len = 32;
if (tokens.len <= prefix_len) {
fprintf(stderr, "ds4: --perplexity-file needs more than %d tokens\n", prefix_len);
ds4_tokens_free(&tokens);
return 1;
}
int scored = tokens.len - prefix_len;
if (cfg->gen.n_predict > 0 && scored > cfg->gen.n_predict) scored = cfg->gen.n_predict;
if (scored > cfg->gen.ctx_size - prefix_len) scored = cfg->gen.ctx_size - prefix_len;
if (scored <= 0) {
fprintf(stderr, "ds4: context too small for perplexity scoring\n");
ds4_tokens_free(&tokens);
return 1;
}
ds4_session *session = NULL;
if (ds4_session_create(&session, engine, cfg->gen.ctx_size) != 0) {
fprintf(stderr, "ds4: --perplexity-file requires a graph session backend\n");
ds4_tokens_free(&tokens);
return 1;
}
if (cli_wait_distributed_route(cfg, session) != 0) {
ds4_session_free(session);
ds4_tokens_free(&tokens);
return 1;
}
ds4_tokens prefix = {0};
for (int i = 0; i < prefix_len; i++) ds4_tokens_push(&prefix, tokens.v[i]);
char err[160];
if (ds4_session_sync(session, &prefix, err, sizeof(err)) != 0) {
fprintf(stderr, "ds4: perplexity initial token failed: %s\n", err);
ds4_tokens_free(&prefix);
ds4_session_free(session);
ds4_tokens_free(&tokens);
return 1;
}
ds4_tokens_free(&prefix);
double nll = 0.0;
for (int j = 0; j < scored; j++) {
const int i = prefix_len + j;
ds4_token_score score;
if (!ds4_session_token_logprob(session, tokens.v[i], &score)) {
fprintf(stderr, "ds4: failed to score token %d\n", i);
ds4_session_free(session);
ds4_tokens_free(&tokens);
return 1;
}
nll -= (double)score.logprob;
if (((j + 1) % 256) == 0 || j + 1 == scored) {
fprintf(stderr, "ds4: perplexity scored %d/%d\r", j + 1, scored);
fflush(stderr);
}
if (j + 1 < scored && ds4_session_eval(session, tokens.v[i], err, sizeof(err)) != 0) {
fprintf(stderr, "\nds4: perplexity decode failed at token %d: %s\n", i, err);
ds4_session_free(session);
ds4_tokens_free(&tokens);
return 1;
}
}
fputc('\n', stderr);
const double avg_nll = nll / (double)scored;
printf("tokens=%d scored=%d nll=%.9f avg_nll=%.9f ppl=%.9f\n",
tokens.len, scored, nll, avg_nll, exp(avg_nll));
ds4_session_free(session);
ds4_tokens_free(&tokens);
return 0;
}
static int run_generation(ds4_engine *engine, const cli_config *cfg) {
ds4_tokens prompt = {0};
build_prompt(engine, &cfg->gen, &prompt);
int rc = 0;
if (cfg->gen.metal_graph_test) {
rc = ds4_engine_metal_graph_test(engine, &prompt);
ds4_tokens_free(&prompt);
return rc;
}
if (cfg->gen.metal_graph_full_test) {
rc = ds4_engine_metal_graph_full_test(engine, &prompt);
ds4_tokens_free(&prompt);
return rc;
}
if (cfg->gen.metal_graph_prompt_test) {
rc = ds4_engine_metal_graph_prompt_test(engine, &prompt, cfg->gen.ctx_size);
ds4_tokens_free(&prompt);
return rc;
}
if (cfg->gen.dump_logits_path) {
rc = run_logits_dump(engine, cfg, &prompt);
ds4_tokens_free(&prompt);
return rc;
}
if (cfg->gen.dump_logprobs_path) {
rc = run_logprob_dump(engine, cfg, &prompt);
ds4_tokens_free(&prompt);
return rc;
}
if (cfg->gen.decode_consistency_tokens > 0) {
rc = run_decode_consistency(engine, cfg, &prompt);
ds4_tokens_free(&prompt);
return rc;
}
const bool diagnostic = cfg->gen.dump_tokens ||
cfg->gen.head_test ||
cfg->gen.first_token_test;
if (cfg->gen.head_test) {
rc = ds4_engine_head_test(engine, &prompt);
}
if (rc == 0 && cfg->gen.first_token_test) {
rc = ds4_engine_first_token_test(engine, &prompt);
}
if (cfg->gen.dump_tokens) {
ds4_engine_dump_tokens(engine, &prompt);
}
if (diagnostic) {
if (rc == 0) {
fprintf(stderr, "ds4: diagnostic run completed on the native %s path.\n",
ds4_backend_name(cfg->engine.backend));
}
} else {
if (cfg->engine.distributed.role == DS4_DISTRIBUTED_COORDINATOR ||
cfg->engine.tp.role == DS4_TP_LEADER ||
getenv("DS4_CLI_FORCE_SESSION") != NULL ||
cfg->gen.temperature > 0.0f ||
ds4_engine_mtp_draft_tokens(engine) > 1) {
/* TP leaders always drive the session path: the sync/eval
* mirroring that keeps the worker in lockstep lives there.
* The env override exists so TP-vs-single-node validation
* compares like with like. */
rc = run_sampled_generation(engine, cfg, &prompt);
} else {
token_printer printer = {
.engine = engine,
.fp = stdout,
.format_thinking = ds4_think_mode_enabled(cli_effective_think_mode(&cfg->gen)),
.in_think = ds4_think_mode_enabled(cli_effective_think_mode(&cfg->gen)),
.use_color = isatty(fileno(stdout)) != 0,
.last_output_newline = true,
};
cli_prefill_progress progress = {
.base_tokens = 0,
.input_tokens = prompt.len,
.use_color = ds4_log_is_tty(stderr),
};
rc = ds4_engine_generate_argmax(engine, &prompt, cfg->gen.n_predict,
cfg->gen.ctx_size,
print_generated_token,
generation_done,
&printer,
cli_prefill_progress_cb,
&progress);
}
}
ds4_tokens_free(&prompt);
return rc;
}
static char *trim_inplace(char *s) {
while (*s && isspace((unsigned char)*s)) s++;
char *end = s + strlen(s);
while (end > s && isspace((unsigned char)end[-1])) end--;
*end = '\0';
return s;
}
static void print_repl_help(void) {
puts("Commands:");
puts(" /help Show this help.");
puts(" /think Use normal thinking mode.");
puts(" /think-max Use Think Max only when context is at least 393216 tokens.");
puts(" /nothink Disable thinking mode.");
puts(" /ctx N Set context size for following prompts.");
puts(" /power N Set GPU duty cycle percentage, 1..100.");
puts(" /read FILE Read a prompt from FILE and run it.");
puts(" /quit, /exit Leave the prompt.");
puts(" Ctrl+C Stop generation and return to the prompt.");
}
static bool parse_power_percent(const char *arg, int *out) {
char *end = NULL;
long v = strtol(arg, &end, 10);
if (!arg[0] || *end != '\0' || v < 1 || v > 100) return false;
*out = (int)v;
return true;
}
static void history_file_path(char *buf, size_t len) {
const char *home = getenv("HOME");
if (!home || !home[0]) home = ".";
snprintf(buf, len, "%s/.ds4_history", home);
}
typedef struct {
ds4_session *session;
ds4_tokens transcript;
int ctx_size;
int think_prefix_pos;
int think_prefix_tokens;
} repl_chat;
static void tokens_insert(ds4_tokens *dst, int pos, const ds4_tokens *src) {
if (!src || src->len <= 0) return;
if (pos < 0) pos = 0;
if (pos > dst->len) pos = dst->len;
while (dst->len + src->len > dst->cap) {
dst->cap = dst->cap ? dst->cap * 2 : 64;
int *next = realloc(dst->v, (size_t)dst->cap * sizeof(dst->v[0]));
if (!next) {
perror("ds4: realloc");
exit(1);
}
dst->v = next;
}
memmove(dst->v + pos + src->len, dst->v + pos,
(size_t)(dst->len - pos) * sizeof(dst->v[0]));
memcpy(dst->v + pos, src->v, (size_t)src->len * sizeof(src->v[0]));
dst->len += src->len;
}
static void tokens_remove(ds4_tokens *dst, int pos, int n) {
if (n <= 0 || pos < 0 || pos >= dst->len) return;
if (pos + n > dst->len) n = dst->len - pos;
memmove(dst->v + pos, dst->v + pos + n,
(size_t)(dst->len - pos - n) * sizeof(dst->v[0]));
dst->len -= n;
}
static const char *repl_glm_reasoning_effort_text(ds4_think_mode mode) {
switch (mode) {
case DS4_THINK_HIGH: return "Reasoning Effort: High";
case DS4_THINK_MAX: return "Reasoning Effort: Max";
case DS4_THINK_NONE: return NULL;
}
return NULL;
}
static void repl_chat_build_think_prefix(ds4_engine *engine,
ds4_think_mode mode,
ds4_tokens *prefix) {
if (ds4_engine_is_glm_dsa(engine)) {
const char *effort = repl_glm_reasoning_effort_text(mode);
if (effort) ds4_chat_append_message(engine, prefix, "system", effort);
} else if (mode == DS4_THINK_MAX) {
ds4_chat_append_max_effort_prefix(engine, prefix);
}
}
/* Insert/replace the model-family thinking prefix inside the existing
* transcript. It lives immediately after the BOS sequence and before any
* user/system text, matching the GGUF chat templates. */
static void repl_chat_apply_think_prefix(ds4_engine *engine,
repl_chat *chat,
ds4_think_mode mode) {
ds4_tokens prefix = {0};
repl_chat_build_think_prefix(engine, mode, &prefix);
bool same = chat->think_prefix_tokens == prefix.len;
if (same && prefix.len > 0) {
same = !memcmp(chat->transcript.v + chat->think_prefix_pos,
prefix.v,
(size_t)prefix.len * sizeof(prefix.v[0]));
}
if (!same) {
tokens_remove(&chat->transcript, chat->think_prefix_pos,
chat->think_prefix_tokens);
tokens_insert(&chat->transcript, chat->think_prefix_pos, &prefix);
chat->think_prefix_tokens = prefix.len;
if (chat->session) ds4_session_invalidate(chat->session);
}
ds4_tokens_free(&prefix);
}
static int repl_chat_create_session(ds4_engine *engine, repl_chat *chat, int ctx_size) {
ds4_session *session = NULL;
if (ds4_session_create(&session, engine, ctx_size) != 0) {
fprintf(stderr, "ds4: interactive chat KV cache requires a session backend\n");
return 1;
}
if (chat->session) ds4_session_free(chat->session);
chat->session = session;
chat->ctx_size = ctx_size;
return 0;
}
static int repl_chat_init(ds4_engine *engine, repl_chat *chat, const cli_config *cfg) {
memset(chat, 0, sizeof(*chat));
ds4_chat_begin(engine, &chat->transcript);
chat->think_prefix_pos = chat->transcript.len;
repl_chat_apply_think_prefix(engine, chat, cli_effective_think_mode(&cfg->gen));
if (cfg->gen.system && cfg->gen.system[0]) {
ds4_chat_append_message(engine, &chat->transcript, "system", cfg->gen.system);
}
return repl_chat_create_session(engine, chat, cfg->gen.ctx_size);
}
static void repl_chat_free(repl_chat *chat) {
if (!chat) return;
ds4_session_free(chat->session);
ds4_tokens_free(&chat->transcript);
memset(chat, 0, sizeof(*chat));
}
static int repl_chat_set_ctx(ds4_engine *engine, repl_chat *chat, int ctx_size) {
ds4_session_free(chat->session);
chat->session = NULL;
chat->ctx_size = 0;
return repl_chat_create_session(engine, chat, ctx_size);
}
static bool repl_chat_assistant_turn_uses_eos(ds4_engine *engine) {
return !ds4_engine_is_glm_dsa(engine);
}
/* Run one interactive turn. The transcript is tentatively extended with user
* and assistant markers, then ds4_session_sync() decides whether this is a KV
* continuation. If prompt processing fails, the transcript rolls back before
* returning to the prompt. */
static int run_chat_turn(ds4_engine *engine, cli_config *cfg, repl_chat *chat, const char *user_text) {
if (!chat->session) {
fprintf(stderr, "ds4: no active interactive KV cache\n");
return 1;
}
ds4_think_mode think_mode = ds4_think_mode_for_context(cfg->gen.think_mode,
chat->ctx_size);
repl_chat_apply_think_prefix(engine, chat, think_mode);
const int rollback_len = chat->transcript.len;
ds4_chat_append_message(engine, &chat->transcript, "user", user_text);
ds4_chat_append_assistant_prefix(engine, &chat->transcript, think_mode);
const int old_pos = ds4_session_pos(chat->session);
const int common = ds4_session_common_prefix(chat->session, &chat->transcript);
const int cached = common == old_pos && chat->transcript.len >= old_pos ? common : 0;
const int suffix = chat->transcript.len - cached;
char err[160];
cli_prefill_progress progress = {
.base_tokens = cached,
.input_tokens = suffix,
.use_color = ds4_log_is_tty(stderr),
};
const double t_prefill0 = cli_now_sec();
ds4_session_set_progress(chat->session, cli_prefill_progress_cb, &progress);
ds4_session_set_display_progress(chat->session,
progress.use_color ? cli_prefill_progress_cb : NULL,
progress.use_color ? &progress : NULL);
cli_dist_busy_set(cfg, true);
int sync_rc = ds4_session_sync(chat->session, &chat->transcript, err, sizeof(err));
cli_dist_busy_set(cfg, false);
if (sync_rc != 0) {
ds4_session_set_progress(chat->session, NULL, NULL);
ds4_session_set_display_progress(chat->session, NULL, NULL);
chat->transcript.len = rollback_len;
fprintf(stderr, "ds4: prompt processing failed: %s\n", err);
return 1;
}
ds4_session_set_progress(chat->session, NULL, NULL);
ds4_session_set_display_progress(chat->session, NULL, NULL);
const double t_prefill1 = cli_now_sec();
token_printer printer = {
.engine = engine,
.fp = stdout,
.format_thinking = ds4_think_mode_enabled(think_mode),
.in_think = ds4_think_mode_enabled(think_mode),
.use_color = isatty(fileno(stdout)) != 0,
.last_output_newline = true,
};
int max_tokens = cfg->gen.n_predict;
int room = ds4_session_ctx(chat->session) - ds4_session_pos(chat->session);
if (room <= 1) max_tokens = 0;
else if (max_tokens > room - 1) max_tokens = room - 1;
uint64_t rng = cfg->gen.seed ? cfg->gen.seed :
((uint64_t)time(NULL) ^ ((uint64_t)getpid() << 32) ^ (uint64_t)clock());
int generated = 0;
const bool speculative_argmax = cfg->gen.temperature <= 0.0f &&
((ds4_engine_mtp_draft_tokens(engine) > 1 &&
getenv("DS4_MTP_SPEC_DISABLE") == NULL) ||
cli_splitkv_spec_requested());
const bool greedy_argmax = cfg->gen.temperature <= 0.0f &&
cli_greedy_argmax_requested(speculative_argmax);
bool have_greedy_next = false;
int greedy_next = -1;
const double t_decode0 = cli_now_sec();
while (generated < max_tokens && !cli_interrupt_requested()) {
int token;
if (greedy_argmax && have_greedy_next) {
token = greedy_next;
have_greedy_next = false;
} else {
token = ds4_session_sample(chat->session,
cfg->gen.temperature,
0,
cfg->gen.top_p,
cfg->gen.min_p,
&rng);
}
if (ds4_token_is_stop_for_think_mode(engine, token, think_mode)) break;
int toks[17];
int ntok = 0;
if (cfg->gen.temperature <= 0.0f && ds4_engine_mtp_draft_tokens(engine) > 1 &&
getenv("DS4_MTP_SPEC_DISABLE") == NULL) {
cli_dist_busy_set(cfg, true);
ntok = ds4_session_eval_speculative_argmax(chat->session,
token,
max_tokens - generated,
ds4_token_eos(engine),
toks,
(int)(sizeof(toks) / sizeof(toks[0])),
err,
sizeof(err));
cli_dist_busy_set(cfg, false);
if (ntok < 0) {
fprintf(stderr, "ds4: decode failed: %s\n", err);
return 1;
}
} else {
size_t piece_len = 0;
char *piece = ds4_token_text(engine, token, &piece_len);
ds4_tokens_push(&chat->transcript, token);
token_printer_write_text(&printer, piece, piece_len);
fflush(stdout);
free(piece);
generated++;
cli_dist_busy_set(cfg, true);
int eval_rc = ds4_session_eval(chat->session, token, err, sizeof(err));
cli_dist_busy_set(cfg, false);
if (eval_rc != 0) {
fprintf(stderr, "ds4: decode failed: %s\n", err);
ds4_session_invalidate(chat->session);
return 1;
}
if (generated >= max_tokens) break;
continue;
}
bool stop = false;
for (int j = 0; j < ntok; j++) {
if (ds4_token_is_stop_for_think_mode(engine, toks[j], think_mode)) {
stop = true;
break;
}
size_t piece_len = 0;
char *piece = ds4_token_text(engine, toks[j], &piece_len);
ds4_tokens_push(&chat->transcript, toks[j]);
token_printer_write_text(&printer, piece, piece_len);
fflush(stdout);
free(piece);
generated++;
if (generated >= max_tokens) break;
}
if (stop) break;
}
const double t_decode1 = cli_now_sec();
generation_done(&printer);
const bool interrupted = cli_interrupt_requested();
if (interrupted && generated == 0) {
chat->transcript.len = rollback_len;
ds4_session_invalidate(chat->session);
} else if (repl_chat_assistant_turn_uses_eos(engine)) {
ds4_tokens_push(&chat->transcript, ds4_token_eos(engine));
}
const double prefill_s = t_prefill1 - t_prefill0;
const double decode_s = t_decode1 - t_decode0;
if (interrupted) cli_interrupt_clear();
ds4_log(stderr,
DS4_LOG_TIMING,
"ds4: prefill: %.2f t/s, generation: %.2f t/s\n",
prefill_s > 0.0 ? (double)suffix / prefill_s : 0.0,
decode_s > 0.0 ? (double)generated / decode_s : 0.0);
return 0;
}
static int run_repl(ds4_engine *engine, cli_config *cfg) {
repl_chat chat;
if (repl_chat_init(engine, &chat, cfg) != 0) return 1;
struct sigaction old_int;
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sigemptyset(&sa.sa_mask);
sa.sa_handler = cli_sigint_handler;
bool sigint_installed = sigaction(SIGINT, &sa, &old_int) == 0;
cli_interrupt_clear();
char hist[PATH_MAX];
history_file_path(hist, sizeof(hist));
linenoiseSetMultiLine(1);
linenoiseHistorySetMaxLen(512);
linenoiseHistoryLoad(hist);
print_repl_help();
int rc = 0;
for (;;) {
errno = 0;
char *line = linenoise("ds4> ");
if (!line) {
if (errno == EAGAIN || cli_interrupt_requested()) {
cli_interrupt_clear();
continue;
}
break;
}
char *cmd = trim_inplace(line);
if (!cmd[0]) {
linenoiseFree(line);
continue;
}
linenoiseHistoryAdd(cmd);
linenoiseHistorySave(hist);
if (!strcmp(cmd, "/help")) {
print_repl_help();
} else if (!strcmp(cmd, "/think")) {
cfg->gen.think_mode = DS4_THINK_HIGH;
repl_chat_apply_think_prefix(engine, &chat, DS4_THINK_HIGH);
puts("Thinking mode: high.");
} else if (!strcmp(cmd, "/think-max")) {
cfg->gen.think_mode = DS4_THINK_MAX;
bool active = ds4_think_mode_for_context(cfg->gen.think_mode,
chat.ctx_size) == DS4_THINK_MAX;
repl_chat_apply_think_prefix(engine, &chat,
active ? DS4_THINK_MAX : DS4_THINK_HIGH);
cli_warn_think_max_downgraded(&cfg->gen, "/think-max");
printf("Thinking mode: %s.\n", active ? "max" : "high (ctx below 393216)");
} else if (!strcmp(cmd, "/nothink")) {
cfg->gen.think_mode = DS4_THINK_NONE;
repl_chat_apply_think_prefix(engine, &chat, DS4_THINK_NONE);
puts("Thinking mode: none.");
} else if (!strncmp(cmd, "/power", 6) && (cmd[6] == '\0' || isspace((unsigned char)cmd[6]))) {
char *arg = trim_inplace(cmd + 6);
if (!arg[0]) {
printf("Power: %d%%.\n", ds4_session_power(chat.session));
} else {
int power = 0;
if (!parse_power_percent(arg, &power)) {
fprintf(stderr, "ds4: /power must be between 1 and 100\n");
} else if (ds4_session_set_power(chat.session, power) != 0) {
fprintf(stderr, "ds4: failed to set /power\n");
} else {
cfg->engine.power_percent = power;
printf("Power: %d%%.\n", power);
}
}
} else if (!strncmp(cmd, "/ctx", 4) && (cmd[4] == '\0' || isspace((unsigned char)cmd[4]))) {
char *arg = trim_inplace(cmd + 4);
if (!arg[0]) {
fprintf(stderr, "ds4: /ctx needs a positive integer\n");
} else {
cfg->gen.ctx_size = parse_int(arg, "/ctx");
log_context_memory(cfg->engine.backend,
cfg->gen.ctx_size,
ds4_engine_prefill_chunk(engine),
cfg->engine.ssd_streaming);
rc = repl_chat_set_ctx(engine, &chat, cfg->gen.ctx_size);
if (rc != 0) {
linenoiseFree(line);
break;
}
ds4_think_mode effective = ds4_think_mode_for_context(cfg->gen.think_mode,
chat.ctx_size);
repl_chat_apply_think_prefix(engine, &chat, effective);
cli_warn_think_max_downgraded(&cfg->gen, "/ctx");
}
} else if (!strcmp(cmd, "/quit") || !strcmp(cmd, "/exit")) {
linenoiseFree(line);
break;
} else if (!strncmp(cmd, "/read", 5) && (cmd[5] == '\0' || isspace((unsigned char)cmd[5]))) {
char *path = trim_inplace(cmd + 5);
if (!path[0]) {
fprintf(stderr, "ds4: /read needs a file path\n");
} else {
char *prompt = read_prompt_file(path, false);
if (prompt) {
rc = run_chat_turn(engine, cfg, &chat, prompt);
free(prompt);
}
}
} else if (cmd[0] == '/') {
fprintf(stderr, "ds4: unknown command: %s\n", cmd);
fprintf(stderr, "ds4: type /help for commands\n");
} else {
rc = run_chat_turn(engine, cfg, &chat, cmd);
}
linenoiseFree(line);
}
if (sigint_installed) sigaction(SIGINT, &old_int, NULL);
repl_chat_free(&chat);
return rc;
}
static const char *need_arg(int *i, int argc, char **argv, const char *opt) {
if (*i + 1 >= argc) {
fprintf(stderr, "ds4: missing value for %s\n", opt);
exit(2);
}
return argv[++(*i)];
}
static char *read_prompt_file(const char *path, bool fatal) {
FILE *fp = fopen(path, "rb");
if (!fp) {
fprintf(stderr, "ds4: failed to open prompt file: %s\n", path);
if (fatal) exit(2);
return NULL;
}
if (fseek(fp, 0, SEEK_END) != 0) {
fprintf(stderr, "ds4: failed to seek prompt file: %s\n", path);
fclose(fp);
if (fatal) exit(2);
return NULL;
}
long len = ftell(fp);
if (len < 0) {
fprintf(stderr, "ds4: failed to size prompt file: %s\n", path);
fclose(fp);
if (fatal) exit(2);
return NULL;
}
rewind(fp);
char *buf = malloc((size_t)len + 1);
if (!buf) {
fprintf(stderr, "ds4: out of memory reading prompt file: %s\n", path);
fclose(fp);
if (fatal) exit(2);
return NULL;
}
size_t nread = fread(buf, 1, (size_t)len, fp);
if (nread != (size_t)len) {
fprintf(stderr, "ds4: failed to read prompt file: %s\n", path);
free(buf);
fclose(fp);
if (fatal) exit(2);
return NULL;
}
if (fclose(fp) != 0) {
fprintf(stderr, "ds4: failed to close prompt file: %s\n", path);
free(buf);
if (fatal) exit(2);
return NULL;
}
buf[len] = '\0';
return buf;
}
static cli_config parse_options(int argc, char **argv) {
cli_config c = {
.engine = {
.model_path = "ds4flash.gguf",
.backend = default_backend(),
.mtp_draft_tokens = 1,
.mtp_margin = 3.0f,
},
.gen = {
.prompt = NULL,
.system = "You are a helpful assistant",
.n_predict = 50000,
.ctx_size = 32768,
.temperature = DS4_DEFAULT_TEMPERATURE,
.top_p = DS4_DEFAULT_TOP_P,
.min_p = DS4_DEFAULT_MIN_P,
.dump_logprobs_top_k = 20,
.think_mode = DS4_THINK_HIGH,
},
};
c.dist = ds4_dist_options_create();
if (!c.dist) {
fprintf(stderr, "ds4: out of memory creating distributed options\n");
exit(1);
}
bool directional_steering_scale_set = false;
for (int i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
const char *topic = (i + 1 < argc && argv[i + 1][0] != '-') ?
argv[i + 1] : NULL;
usage(stdout, topic);
exit(0);
}
char dist_parse_err[256] = {0};
ds4_dist_cli_parse_result dist_parse = ds4_dist_parse_cli_arg(arg,
&i,
argc,
argv,
c.dist,
dist_parse_err,
sizeof(dist_parse_err));
if (dist_parse == DS4_DIST_CLI_ERROR) {
fprintf(stderr, "ds4: %s\n", dist_parse_err[0] ? dist_parse_err : "invalid distributed option");
exit(2);
}
if (dist_parse == DS4_DIST_CLI_MATCHED) continue;
char tp_parse_err[256] = {0};
ds4_tp_cli_parse_result tp_parse = ds4_tp_parse_cli_arg(arg,
&i,
argc,
argv,
&c.engine.tp,
tp_parse_err,
sizeof(tp_parse_err));
if (tp_parse == DS4_TP_CLI_ERROR) {
fprintf(stderr, "ds4: %s\n", tp_parse_err[0] ? tp_parse_err : "invalid tensor-parallel option");
exit(2);
}
if (tp_parse == DS4_TP_CLI_MATCHED) continue;
if (!strcmp(arg, "-p") || !strcmp(arg, "--prompt")) {
if (c.gen.prompt) {
fprintf(stderr, "ds4: specify only one prompt source\n");
exit(2);
}
c.gen.prompt = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--prompt-file")) {
if (c.gen.prompt) {
fprintf(stderr, "ds4: specify only one prompt source\n");
exit(2);
}
c.prompt_owned = read_prompt_file(need_arg(&i, argc, argv, arg), true);
c.gen.prompt = c.prompt_owned;
} else if (!strcmp(arg, "-sys") || !strcmp(arg, "--system")) {
c.gen.system = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--raw") || !strcmp(arg, "--raw-prompt")) {
c.gen.raw_prompt = true;
} else if (!strcmp(arg, "-m") || !strcmp(arg, "--model")) {
c.engine.model_path = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--mtp")) {
c.engine.mtp_path = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--mtp-draft")) {
c.engine.mtp_draft_tokens = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--mtp-margin")) {
c.engine.mtp_margin = parse_float_range(need_arg(&i, argc, argv, arg), arg, 0.0f, 1000.0f);
} else if (!strcmp(arg, "--glm-mtp")) {
c.engine.glm_mtp = true;
} else if (!strcmp(arg, "--glm-mtp-timing")) {
c.engine.glm_mtp = true;
c.engine.glm_mtp_timing = true;
} else if (!strcmp(arg, "--dspark")) {
c.engine.dspark = true;
} else if (!strcmp(arg, "--dspark-confidence")) {
c.engine.dspark = true;
c.engine.dspark_confidence_threshold =
parse_float_range(need_arg(&i, argc, argv, arg), arg, 0.0f, 1.0f);
c.engine.dspark_confidence_threshold_set = true;
} else if (!strcmp(arg, "--dspark-strict")) {
c.engine.dspark = true;
c.engine.dspark_strict = true;
} else if (!strcmp(arg, "-n") || !strcmp(arg, "--tokens")) {
c.gen.n_predict = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "-c") || !strcmp(arg, "--ctx")) {
c.gen.ctx_size = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--temp")) {
c.gen.temperature = parse_float_range(need_arg(&i, argc, argv, arg), arg, 0.0f, 100.0f);
c.gen.temperature_set = true;
} else if (!strcmp(arg, "--top-p")) {
c.gen.top_p = parse_float_range(need_arg(&i, argc, argv, arg), arg, 0.0f, 1.0f);
c.gen.top_p_set = true;
} else if (!strcmp(arg, "--min-p")) {
c.gen.min_p = parse_float_range(need_arg(&i, argc, argv, arg), arg, 0.0f, 1.0f);
c.gen.min_p_set = true;
} else if (!strcmp(arg, "--seed")) {
c.gen.seed = parse_u64(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--quality")) {
c.engine.quality = true;
} else if (!strcmp(arg, "--ssd-streaming")) {
c.engine.ssd_streaming = true;
} else if (!strcmp(arg, "--ssd-streaming-cold")) {
c.engine.ssd_streaming_cold = true;
} else if (!strcmp(arg, "--ssd-streaming-cache-experts")) {
uint32_t experts = 0;
uint64_t bytes = 0;
if (!ds4_parse_streaming_cache_experts_arg(
need_arg(&i, argc, argv, arg), &experts, &bytes)) {
fprintf(stderr,
"ds4: --ssd-streaming-cache-experts must be a positive count or <number>GB\n");
exit(2);
}
c.engine.ssd_streaming_cache_experts = experts;
c.engine.ssd_streaming_cache_bytes = bytes;
} else if (!strcmp(arg, "--ssd-streaming-full-layers")) {
int v = parse_nonnegative_int(need_arg(&i, argc, argv, arg), arg);
c.engine.ssd_streaming_full_layers = (uint32_t)v;
c.engine.ssd_streaming_full_layers_set = true;
} else if (!strcmp(arg, "--ssd-streaming-preload-experts")) {
int v = parse_int(need_arg(&i, argc, argv, arg), arg);
if (v <= 0) {
fprintf(stderr, "ds4: --ssd-streaming-preload-experts must be positive\n");
exit(2);
}
c.engine.ssd_streaming_preload_experts = (uint32_t)v;
} else if (!strcmp(arg, "--simulate-used-memory")) {
if (!ds4_parse_gib_arg(need_arg(&i, argc, argv, arg),
&c.engine.simulate_used_memory_bytes)) {
fprintf(stderr,
"ds4: --simulate-used-memory must be a positive GiB value, e.g. 64GB\n");
exit(2);
}
} else if (!strcmp(arg, "--prefill-chunk")) {
int v = parse_int(need_arg(&i, argc, argv, arg), arg);
if (v <= 0) {
fprintf(stderr, "ds4: --prefill-chunk must be positive\n");
exit(2);
}
c.engine.prefill_chunk = (uint32_t)v;
} else if (!strcmp(arg, "--power")) {
c.engine.power_percent = parse_int(need_arg(&i, argc, argv, arg), arg);
if (c.engine.power_percent < 1 || c.engine.power_percent > 100) {
fprintf(stderr, "ds4: --power must be between 1 and 100\n");
exit(2);
}
} else if (!strcmp(arg, "--dir-steering-file")) {
c.engine.directional_steering_file = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--expert-profile")) {
c.engine.expert_profile_path = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--dir-steering-ffn")) {
c.engine.directional_steering_ffn = parse_float_range(need_arg(&i, argc, argv, arg), arg, -100.0f, 100.0f);
directional_steering_scale_set = true;
} else if (!strcmp(arg, "--dir-steering-attn")) {
c.engine.directional_steering_attn = parse_float_range(need_arg(&i, argc, argv, arg), arg, -100.0f, 100.0f);
directional_steering_scale_set = true;
} else if (!strcmp(arg, "-t") || !strcmp(arg, "--threads")) {
c.engine.n_threads = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--backend")) {
c.engine.backend = parse_backend(need_arg(&i, argc, argv, arg));
} else if (!strcmp(arg, "--cpu")) {
c.engine.backend = DS4_BACKEND_CPU;
} else if (!strcmp(arg, "--metal")) {
c.engine.backend = DS4_BACKEND_METAL;
#ifdef DS4_ROCM_BUILD
} else if (!strcmp(arg, "--rocm")) {
c.engine.backend = DS4_BACKEND_CUDA;
#else
} else if (!strcmp(arg, "--cuda")) {
c.engine.backend = DS4_BACKEND_CUDA;
#endif
} else if (!strcmp(arg, "--gpu-vram")) {
c.gpu_vram_arg = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--gpu-devices")) {
c.gpu_devices_arg = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--cuda-tensor-parallel")) {
c.engine.cuda_tensor_parallel = true;
} else if (!strcmp(arg, "--dump-tokens")) {
c.gen.dump_tokens = true;
} else if (!strcmp(arg, "--dump-logits")) {
c.gen.dump_logits_path = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--dump-logprobs")) {
c.gen.dump_logprobs_path = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--logprobs-top-k")) {
c.gen.dump_logprobs_top_k = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--decode-consistency")) {
c.gen.decode_consistency_tokens = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--perplexity-file")) {
c.gen.perplexity_file_path = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--imatrix-dataset")) {
c.gen.imatrix_dataset_path = need_arg(&i, argc, argv, arg);
} else if (!strcmp(arg, "--imatrix-out")) {
c.gen.imatrix_output_path = need_arg(&i, argc, argv, arg);
c.engine.backend = DS4_BACKEND_METAL;
} else if (!strcmp(arg, "--imatrix-max-prompts")) {
c.gen.imatrix_max_prompts = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--imatrix-max-tokens")) {
c.gen.imatrix_max_tokens = parse_int(need_arg(&i, argc, argv, arg), arg);
} else if (!strcmp(arg, "--think")) {
c.gen.think_mode = DS4_THINK_HIGH;
} else if (!strcmp(arg, "--think-max")) {
c.gen.think_mode = DS4_THINK_MAX;
} else if (!strcmp(arg, "--nothink")) {
c.gen.think_mode = DS4_THINK_NONE;
} else if (!strcmp(arg, "--head-test")) {
c.gen.head_test = true;
} else if (!strcmp(arg, "--first-token-test")) {
c.gen.first_token_test = true;
} else if (!strcmp(arg, "--metal-graph-test")) {
c.gen.metal_graph_test = true;
#ifdef DS4_ROCM_BUILD
c.engine.backend = DS4_BACKEND_CUDA;
#else
c.engine.backend = DS4_BACKEND_METAL;
#endif
} else if (!strcmp(arg, "--metal-graph-full-test")) {
c.gen.metal_graph_full_test = true;
#ifdef DS4_ROCM_BUILD
c.engine.backend = DS4_BACKEND_CUDA;
#else
c.engine.backend = DS4_BACKEND_METAL;
#endif
} else if (!strcmp(arg, "--metal-graph-prompt-test")) {
c.gen.metal_graph_prompt_test = true;
#ifdef DS4_ROCM_BUILD
c.engine.backend = DS4_BACKEND_CUDA;
#else
c.engine.backend = DS4_BACKEND_METAL;
#endif
} else if (!strcmp(arg, "--metal-graph-generate")) {
fprintf(stderr, "ds4: --metal-graph-generate was removed; --metal is the graph path\n");
exit(2);
} else if (!strcmp(arg, "--inspect")) {
c.inspect = true;
} else if (!strcmp(arg, "--warm-weights")) {
c.engine.warm_weights = true;
} else if (!strcmp(arg, "--server")) {
fprintf(stderr, "ds4: use ds4-server for the HTTP server\n");
exit(2);
} else {
fprintf(stderr, "ds4: unknown option: %s\n", arg);
usage(stderr, NULL);
exit(2);
}
}
if (c.engine.directional_steering_file && !directional_steering_scale_set) {
c.engine.directional_steering_ffn = 1.0f;
}
if (c.gen.imatrix_output_path && !c.gen.imatrix_dataset_path) {
fprintf(stderr, "ds4: --imatrix-out requires --imatrix-dataset\n");
exit(2);
}
if (c.gen.imatrix_dataset_path && !c.gen.imatrix_output_path) {
fprintf(stderr, "ds4: --imatrix-dataset requires --imatrix-out\n");
exit(2);
}
if (c.gen.perplexity_file_path && c.gen.prompt) {
fprintf(stderr, "ds4: --perplexity-file does not use -p/--prompt-file\n");
exit(2);
}
char tp_err[256];
if (!ds4_tp_adopt_distributed_options(&c.engine.tp, c.dist,
tp_err, sizeof(tp_err))) {
fprintf(stderr, "ds4: %s\n", tp_err);
exit(2);
}
char dist_err[256];
if (ds4_dist_prepare_engine_options(c.dist, &c.engine, dist_err, sizeof(dist_err)) != 0) {
fprintf(stderr, "ds4: %s\n", dist_err);
exit(2);
}
if (!ds4_tp_validate_engine_options(&c.engine, tp_err, sizeof(tp_err))) {
fprintf(stderr, "ds4: %s\n", tp_err);
exit(2);
}
return c;
}
int main(int argc, char **argv) {
cli_config cfg = parse_options(argc, argv);
if (cfg.gen.dump_tokens) {
if (cfg.gen.prompt == NULL) {
fprintf(stderr, "ds4: --dump-tokens requires -p or --prompt-file\n");
free(cfg.prompt_owned);
return 2;
}
int rc = ds4_dump_text_tokenization(cfg.engine.model_path,
cfg.gen.prompt,
stdout);
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return rc;
}
cfg.engine.inspect_only = cfg.inspect;
cfg.engine.first_token_test = cfg.gen.first_token_test;
cfg.engine.metal_graph_test = cfg.gen.metal_graph_test;
cfg.engine.context_size = cfg.gen.ctx_size;
cfg.engine.placement_ctx_hint = cfg.gen.ctx_size;
ds4_engine *engine = NULL;
if (cfg.gpu_vram_arg || cfg.gpu_devices_arg) {
ds4_gpu_config gpu_cfg = {0};
bool skip_cuda = false;
char errbuf[256];
if (parse_gpu_vram_arg(cfg.gpu_vram_arg, cfg.gpu_devices_arg,
&gpu_cfg, &skip_cuda,
errbuf, sizeof(errbuf)) != 0) {
fprintf(stderr, "ds4: %s\n", errbuf);
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return 2;
}
cfg.engine.backend = skip_cuda ? DS4_BACKEND_CPU : DS4_BACKEND_CUDA;
if (skip_cuda) {
if (ds4_engine_open(&engine, &cfg.engine) != 0) {
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return 1;
}
} else {
const bool was_auto =
(cfg.gpu_vram_arg && !strcmp(cfg.gpu_vram_arg, "auto")) ||
(!cfg.gpu_vram_arg && cfg.gpu_devices_arg);
char layout[256];
if (format_gpu_layout_line(&gpu_cfg, was_auto,
layout, sizeof(layout)) > 0) {
fprintf(stdout, "%s\n", layout);
fflush(stdout);
}
if (ds4_engine_create_with_gpu_config(&engine, &cfg.engine,
&gpu_cfg) != 0) {
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return 1;
}
}
} else if (ds4_engine_open(&engine, &cfg.engine) != 0) {
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return 1;
}
cli_apply_model_sampling_defaults(engine, &cfg.gen);
if (cfg.engine.tp.role == DS4_TP_WORKER) {
int rc = ds4_tp_worker_run(engine, &cfg.engine.tp);
ds4_engine_close(engine);
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return rc;
}
ds4_tp *tp_leader = NULL;
if (cfg.engine.tp.role == DS4_TP_LEADER) {
char tp_err[256] = "";
ds4_tp_identity tp_id = {
.gguf_bytes = ds4_engine_model_bytes(engine),
.model_id = (uint32_t)ds4_engine_model_id(engine),
.n_layer = (uint32_t)ds4_engine_layer_count(engine),
.n_embd = (uint32_t)ds4_engine_embd_dim(engine),
.n_vocab = (uint32_t)ds4_engine_vocab_size(engine),
.quant_bits = (uint32_t)ds4_engine_routed_quant_bits(engine),
.ctx_size = (uint32_t)cfg.gen.ctx_size,
};
ds4_engine_tp_gate_schedule(engine,
&tp_id.gate_slot_start,
&tp_id.gate_slot_step,
&tp_id.gates_per_token);
if (!ds4_tp_create(&tp_leader, &cfg.engine.tp, &tp_id, tp_err, sizeof(tp_err)) ||
!ds4_engine_tp_bind(engine, tp_leader, tp_err, sizeof(tp_err))) {
fprintf(stderr, "ds4: %s\n", tp_err);
ds4_tp_free(tp_leader);
ds4_engine_close(engine);
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return 1;
}
}
if (cfg.dist && cfg.dist->role == DS4_DISTRIBUTED_WORKER) {
ds4_dist_generation_options dist_gen = {
.prompt = cfg.gen.prompt,
.system = cfg.gen.system,
.dump_logits_path = cfg.gen.dump_logits_path,
.dump_logprobs_path = cfg.gen.dump_logprobs_path,
.dump_logprobs_top_k = cfg.gen.dump_logprobs_top_k,
.n_predict = cfg.gen.n_predict,
.ctx_size = cfg.gen.ctx_size,
.temperature = cfg.gen.temperature,
.top_p = cfg.gen.top_p,
.min_p = cfg.gen.min_p,
.seed = cfg.gen.seed,
.think_mode = cfg.gen.think_mode,
};
int rc = ds4_dist_run(engine, cfg.dist, &dist_gen);
ds4_engine_close(engine);
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return rc;
}
if (!cfg.inspect) {
log_context_memory(cfg.engine.backend,
cfg.gen.ctx_size,
ds4_engine_prefill_chunk(engine),
cfg.engine.ssd_streaming);
cli_warn_think_max_downgraded(&cfg.gen, "--think-max");
}
int rc = 0;
if (cfg.inspect) {
ds4_engine_summary(engine);
} else if (cfg.gen.imatrix_output_path) {
rc = ds4_engine_collect_imatrix(engine,
cfg.gen.imatrix_dataset_path,
cfg.gen.imatrix_output_path,
cfg.gen.ctx_size,
cfg.gen.imatrix_max_prompts,
cfg.gen.imatrix_max_tokens);
} else if (cfg.gen.perplexity_file_path) {
rc = run_perplexity_file(engine, &cfg);
} else if (cfg.gen.prompt == NULL) {
rc = run_repl(engine, &cfg);
} else {
rc = run_generation(engine, &cfg);
}
if (tp_leader) ds4_tp_send_stop(tp_leader);
ds4_engine_close(engine);
ds4_tp_free(tp_leader);
ds4_dist_options_free(cfg.dist);
free(cfg.prompt_owned);
return rc;
}
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