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#include "includes.h" __global__ void add(int n, float *x, float *y) { // Calculate the starting value for the for loop's index int index = ( blockDim.x * blockIdx.x ) + threadIdx.x; // Calculate the stride between elements of the arrays int stride = blockDim.x * gridDim.x; // Add the elements from array x and arra...
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#include <stdio.h> #define N 64 inline cudaError_t checkCudaErr(cudaError_t err, const char* msg) { if (err != cudaSuccess) { fprintf(stderr, "CUDA Runtime error at %s: %s\n", msg, cudaGetErrorString(err)); } return err; } //__global__ void matrixMulGPU( int * a, int * b, int * c ) //{ // /* // * Buil...
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#include <stdio.h> #include <cuda.h> __global__ void cuda_hello(){ int myId = blockIdx.x*blockDim.x + threadIdx.x; // thread indexing printf("Hello World! My thread is %d\n", myId); } int main() { cuda_hello<<<1,256>>>(); cudaError_t cudaerr = cudaDeviceSynchronize(); if (cudaerr != cudaSuccess) p...
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#include <stdio.h> __global__ void print1D(int* input, dim3 size) { int axis_x = blockIdx.x * blockDim.x + threadIdx.x; // printf("%d, %d\n", axis_x, size.x); int gid = axis_x; // input[gid] = gid; if (axis_x < size.x) { printf( "size(%d), blockDim(%d), blockIdx(%d), threadIdx(%d), input(%d), ...
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#include <string> #include <vector> #include <iostream> #include <fstream> #include <math.h> #include <algorithm> #include <utility> #include <cfloat> #include <cmath> #include <cstdlib> #include "cuda_runtime.h" #include "device_launch_parameters.h" #include <stdio.h> #include <thrust/pair.h> #include <thrust/host_...
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#include <stdlib.h> #include <stdio.h> #include <vector> #include <numeric> #include <iostream> // Here you can set the device ID that was assigned to you #define MYDEVICE 0 double random_double(void) { return 1.0; // return static_cast<double>(rand()) / RAND_MAX; // summing random doubles give numerical ...
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#pragma region License /* The MIT License Copyright (c) 2009 Sky Morey Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, m...
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#include "kernels.cuh" __global__ void find_maxnum_kernel(float* d_array, float* d_max, int* d_mutex, unsigned int N){ unsigned int index = threadIdx.x + blockIdx.x * blockDim.x; unsigned int stride = gridDim.x*blockDim.x; unsigned int offset = 0; //share memory __shared__ float cache[512]; ...
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//采用分块乘法,使用shared memory #include<stdio.h> #include<math.h> #include<time.h> #include <stdlib.h> #define TILE_WIDTH 16 __global__ void multi(int m, int n, int k, double *A, double *B, double *C) { __shared__ double S_a[TILE_WIDTH][TILE_WIDTH]; __shared__ double S_b[TILE_WIDTH][TILE_WIDTH]; int ...
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#include "includes.h" __global__ void kCopy(float* srcStart, float* destStart, const int copyWidth, const int srcJumpWidth, const int destJumpWidth, const int numElements) { const int idx = blockIdx.x * blockDim.x + threadIdx.x; for (int i = idx; i < numElements; i += blockDim.x * gridDim.x) { destStart[(i / copyWidth)...
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#include<stdio.h> int main() { cudaError_t error_code = cudaDeviceReset(); printf("returned error code:%d \n", error_code); // a cudaError_t variable can be regarded as a integer printf("cudaSuccess:%d, error_code==cudaSuccess:%d \n", cudaSuccess, cudaSuccess==error_code); if(error_code==cudaSuccess) ...
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__global__ void addSubArray1 (int *A, int *B, int w, int h) { for (int i = 0; i < w; i++) { int j = blockIdx.x * blockDim.x + threadIdx.x; B[2 * j * w + i] += A[i]; B[(2 * j + 1) * w + i] -= A[i]; } }
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#include<stdio.h> #include<math.h> #define N 10000 #define Block 100 #define thread 100 __global__ void inclusive_scan(int *d_in) { __shared__ int temp_in[N]; int i = threadIdx.x; int tid = blockIdx.x * blockDim.x + threadIdx.x; temp_in[tid] = d_in[tid]; __syncthreads(); for(unsigned int s = 1; s <= N-1; s...
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/* CSC691 GPU programming Project 1: All Hail the New Caesar! Jiajie Xiao Sep 14, 2017 */ #include <stdio.h> #define CHUNK 1024 __global__ void minus (char *cipherTxt, char *plainTxt) { int idx = threadIdx.x; plainTxt[idx] = cipherTxt[idx]-1; // caesar cipher } void decode (char *cipherTxt, char *p...
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#include "includes.h" __global__ void _emul64(int n, double *x, double *y) { int i = threadIdx.x + blockIdx.x * blockDim.x; while (i < n) { y[i] *= x[i]; i += blockDim.x * gridDim.x; } }
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#include <stdio.h> // the following is called a "kernel" //void vectorAdd(const float *a, const float *b, float *c, int numElements) __global__ void vectorAdd(const float *a, const float *b, float *c, int numElements) { // blockDim/ threadIdx is built-in vars, 3-dimensional (get .y, .z?) // blockDim: number of threa...
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#include <stdio.h> #include <stdlib.h> #include <math.h> #include <assert.h> #include <math.h> #include <unistd.h> #include <cuda.h> #include <cuda_runtime_api.h> //#include "cutil.h" using namespace std; int checkDeviceSpecs(int number_of_galaxies, int grid_size); //KERNEL __global__ void integrandKernel(doubl...
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__global__ void bedSlopeSourceSolver(float *BedSlopeSource, float *U, float *BottomIntPts, int m, int n, float dx, float dy) { // Calculate the row and column of the thread within the thread block int row = blockIdx.y * blockDim.y + threadIdx.y; int col = blockIdx.x * blockDim.x + threadIdx.x; // First check if t...
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#include <stdio.h> #include "cuda.h" extern "C" { void saturation_adjustment_cuda(int ntot, double *t, double *qc, double *qv, double cs1, double cs2, double cs3, double cs4, double t0); } //-------------------------------------- // saturatio...
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#include "includes.h" extern "C" { #ifndef NUMBER #define NUMBER float #endif } __global__ void vector_swap (const int n, NUMBER* x, const int offset_x, const int stride_x, NUMBER* y, const int offset_y, const int stride_y) { const int gid = blockIdx.x * blockDim.x + threadIdx.x; if (gid < n) { const int ix = of...
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#include "includes.h" __global__ void bp_output_fc(float *d_output, float *d_preact, float *weight, const int size, const int in_channel, const int out_channel) { const int pos = blockIdx.x * blockDim.x + threadIdx.x; const int totalPos = blockDim.x * gridDim.x; const int N = out_channel * in_channel * size * size; co...
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/********************************************************************** * DESCRIPTION: * Parallel by CUDA Wave Equation - C Version * This program implements the concurrent wave equation *********************************************************************/ #include <stdio.h> #include <stdlib.h> #include <math....
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// update the particle positions __global__ void move_part(int np, float dt, float Lx, float *x, float *u) { int tid = threadIdx.x + blockIdx.x * blockDim.x; while (tid < np) { x[tid] = x[tid] + u[tid]*float(dt); if (x[tid] < float(0.0)) { x[tid] = x[tid] + float(Lx); } ...
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/* This is a automatically generated test. Do not modify */ #include <stdio.h> #include <stdlib.h> #include <math.h> __global__ void compute(float comp, float var_1,float var_2,float var_3,float var_4,float var_5,float var_6,float var_7,float var_8,float var_9,float var_10,float var_11,float var_12,float var_13,floa...
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#include <stdio.h> #include <stdlib.h> #include <time.h> //cuda include #include <cuda.h> #include <curand.h> #include <curand_kernel.h> /* #define BLOCKNUM 100 #define THREADNUM 150 */ __global__ void GSrand(curandState *state, unsigned int seed){ int index = blockIdx.x * blockDim.x * threadIdx.x; curand_init(se...
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#include <iostream> #include <vector> __global__ void fill( int * v, std::size_t size ) { auto tid = threadIdx.x; v[ tid ] = tid; } int main() { std::vector< int > v( 100 ); int * v_d = nullptr; cudaMalloc( &v_d, v.size() * sizeof( int ) ); fill<<< 1, 100 >>>( v_d, v.size() ); cudaMemcpy( v.data()...
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#include <iostream> #include <chrono> #include <cuda_profiler_api.h> __global__ void parallel_for(const int n, double* da) { int tid = threadIdx.x + blockIdx.x*blockDim.x; if (tid < n) { double dummy = 123.456; da[tid] = dummy + 123.456*dummy; } } int main() { const int N = 10000000; i...
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#include "stdio.h" __global__ void cuda_hello(){ printf("Hello World from GPU!\n"); } int main() { printf("Prima di cuda"); cuda_hello<<<1,1>>>(); printf("Dopo di cuda"); return 0; }
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#include "includes.h" /****************************************************************************** * Mathias Bourgoin, Université Pierre et Marie Curie (2011) * * Mathias.Bourgoin@gmail.com * * This software is a computer program whose purpose is to allow * GPU programming with the OCaml language. * * This software ...
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/****************************************************************************** *cr *cr (C) Copyright 2010 The Board of Trustees of the *cr University of Illinois *cr All Rights Reserved *cr *****************************************************************...
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#include <stdint.h> #define BDIM 32 #define ITERTOT 1024 extern "C" __global__ void __launch_bounds__(32, 1) arr_kernel(int *inptr, int *outptr) { int x = threadIdx.x; int a = inptr[x]; uint32_t start = 0; uint32_t stop = 0; int b; asm volatile ("mov.u32 %0, %%clock;" : "=r"(start) :: "memory"...
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#include<stdio.h> #include<time.h> #include<cuda.h> #include<stdlib.h> __global__ void max_value(int *a, int *b) // kernel subroutine called from the host cpu to the gpu device { int i = threadIdx.x; // getting the thread id *b = a[0]; // equating the value of the address in c to a predefined value in a matrix. ...
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#include "includes.h" // ERROR CHECKING MACROS ////////////////////////////////////////////////////// __global__ void mmKernel(float* popsIn, float* popsOut, float* mmm, int patches) { int ii = threadIdx.x; if (ii < patches) { extern __shared__ float s[]; s[ii] = 0.0; for (int jj = 0; jj < patches; jj++) { s[ii] +...
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// From CUDA for Engineers // Listing 4.3 #include <cuda_runtime.h> #include <iostream> #define W 500 #define H 500 #define TX 32 // thread per block along x #define TY 32 // thread per block along y __global__ void distanceKernel(float *d_out, int w, int h, float2 pos) { const int c = blockIdx.x ...
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struct Vec3 { float x; float y; float z; }; __device__ Vec3 vec3Add(Vec3 a, Vec3 b) { Vec3 added = {a.x + b.x, a.y + b.y, a.z + b.z}; return added; } __device__ Vec3 vec3Sub(Vec3 a, Vec3 b) { Vec3 added = {a.x - b.x, a.y - b.y, a.z - b.z}; return added; } __device__ Vec3 vec3Scale(Vec3 a, float f) { Vec3 sca...
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#include "includes.h" extern "C" extern "C" __global__ void dropoutTest( const float* arguments, float* results, const float dropoutFraction, const long size ) { const int X = gridDim.x; const int index = gridDim.y * X * threadIdx.x + X * blockIdx.y + blockIdx.x; if(index < size) { results[index] = arguments[index] *...
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#include<stdio.h> #include<stdlib.h> #include<malloc.h> #include<time.h> #include<cuda.h> __global__ void PictureKernell(float* d_Pin, float* d_Pout, int n, int m){ int Row = blockIdx.y * blockDim.y + threadIdx.y; int Col = blockIdx.x * blockDim.x + threadIdx.x; if ((Row < m) && (Col < n)){ d_Pout...
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#include <stdio.h> #include <stdlib.h> __global__ void foo(int *ptr) { *ptr = 7; } int main(void) { foo<<<1, 1>>>(0); return 0; }
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// GPU monte Carlo Simulation to calculate the value of pi #include <unistd.h> #include <stdio.h> #include <curand.h> #include <curand_kernel.h> #define N 100 #define NUMTHREADS 32 #define NUMBLOCKS 32 #define NUMDARTS (N * NUMTHREADS * NUMBLOCKS) __global__ void getHits (int *c) { __shared__ int cache[NUMTHR...
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#include <stdio.h> #include <cuda.h> #include<sys/time.h> __global__ void dkernel(unsigned *vector, unsigned vectorsize) { unsigned id = blockIdx.x * blockDim.x + threadIdx.x; if(id<vectorsize) vector[id]++; } #define BLOCKSIZE 1024 int main(int nn, char *str[]) { unsigned long long N=1024;...
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/* Poisson solver with CG, SOR Compile with : g++ -fopenmp main.cpp */ #include <cstdio> #include <cstdlib> #include <cmath> #include <time.h> #include <ctime> #include <iostream> #include <fstream> #include <cuda.h> #include <cuda_runtime.h> #include "const.cu" #include "operator.cu" #include "init.cu" #include "Wri...
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#include<iostream> #define tile_width 16 using namespace std; __global__ void Mat_Mul_Shared(float *d_A, float *d_B, float *d_C, int width) { int i = blockIdx.y * blockDim.y + threadIdx.y; int j = blockIdx.x * blockDim.x + threadIdx.x; __shared__ float M[tile_width][tile_width]; __shared__ float N[tile_...
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#include <stdio.h> #include <stdlib.h> __global__ void gpuVecAdd(float *A, float *B, float *C) { // TODO: write kernel code here int tid = blockIdx.x * blockDim.x + threadIdx.x; C[tid] = A[tid] + B[tid]; } void init(float *V, int N) { for (int i = 0; i < N; i++) { V[i] = rand() % 100; } } ...
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// Output of "python3 circuit2.py sum.crc" is pasted in as the kernel // along with some boilerplate code to test this out. // Expected output: "28 1 5 3 22 5 13 7\n". #include <iostream> __global__ void sum(int *x0, int *x1){ int tid = threadIdx.x; x1[tid] = x0[tid]; switch(tid){ case 0: ...
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#include<iostream> #include<math.h> #define n 8 using namespace std; __global__ void minimum(int *input) { int tid = threadIdx.x; int step_size = 1; int number_of_threads = blockDim.x; printf("No of threads = %d", number_of_threads); while(number_of_threads>0) { if(tid < number...
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#include <cuda.h> #include <cuda_runtime.h> #include <stdio.h> int main(int argc, char **argv){ cudaDeviceProp dP; //CUdevice dev; //CUcontext ctx; if(cudaSuccess != cudaGetDeviceProperties(&dP, 0)) return 0; /*if(CUDA_SUCCESS != cuDeviceGet(&dev,0)) return 0; // create context for program run: if(CUDA_SUCCESS...
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#include <stdio.h> #include "cuda.h" #define max(x,y) ((x) > (y)? (x) : (y)) #define min(x,y) ((x) < (y)? (x) : (y)) #define ceil(a,b) ((a) % (b) == 0 ? (a) / (b) : ((a) / (b)) + 1) void check_error (const char* message) { cudaError_t error = cudaGetLastError (); if (error != cudaSuccess) { printf ("CUDA error :...
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#include <stdio.h> #include <stdlib.h> #include <string.h> #define f_size sizeof(float) #define i_size sizeof(int) //Opens a matrix store and represents it using Compressed Sparse Row format void matrix_read(int **row_pointer, int **column_index, float **values, const char *storename, int *nrows, int *ncols, int *nva...
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/******************************* * Autor: Alejandro Delgado Martel * Nombre: Proyecto Final Versión 1 *******************************/ #include <stdio.h> #include <stdlib.h> #include <cuda_runtime.h> #include <time.h> #include <math.h> #define HISTO_ELEMENTS 1000 __global__ void inicializa_histograma(float* A, ...
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/** * Copyright 1993-2012 NVIDIA Corporation. All rights reserved. * * Please refer to the NVIDIA end user license agreement (EULA) associated * with this source code for terms and conditions that govern your use of * this software. Any use, reproduction, disclosure, or distribution of * this software and relate...
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extern "C" { __global__ void dynamicReverse(int* d, int* sizebuffer){ const int n = sizebuffer[0]; extern __shared__ int s[]; int t = threadIdx.x; int tr = n-t-1; s[t] = d[t]; __syncthreads(); d[t] = s[tr]; } }
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// 10,000 threads incrementing 10 array elements // We need to avoid the conflicts #include <stdio.h> //#include "gputimer.h" #define NUM_THREADS 1000 #define ARRAY_SIZE 10 #define BLOCK_WIDTH 100 void print_array(int* array, int size) { for(int i(0); i < size ; ++i) { printf("%d \t", array[i]); ...
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#include <stdio.h> #include <cuda.h> #include <time.h> int main(void) { int *a_h; int *b_h; int *c_h; int N = 50000000; size_t size = N * sizeof(int); cudaEvent_t start,stop,start1,stop1; float time,time1; cudaEventCreate(&start); cudaEventCreate(&stop); cudaEventCreate(&start1); cudaEventCreate(&stop1); cudaEve...
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#include "includes.h" /* ** Projeto de Algoritmos Paralelos ** Multiplicação de Matrizes */ #define TAM_BLOCO 16 // Função para rodar na CPU // Computa R = M * N // aM é a altura de M // lM é a largura de M // lN é a largura de N __global__ void cuda_multiplicarmatriz(float* M, float* N, float* R, int tamM, i...
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#include <stdio.h> #include <stdlib.h> #include <math.h> #include <assert.h> #include <cuda.h> #include <cuda_runtime.h> #define N 10000000 #define MAX_ERR 1e-6 __global__ void vector_add(float *out, float *a, float *b, int n) { int tid = blockIdx.x * blockDim.x + threadIdx.x; // Handling arbitrary vecto...
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#include <iostream> #include <math.h> // Tells the CUDA C++ compiler that this is a function (kernel) that runs on the GPU and can be called from CPU code // These __global__ functions are known as kernels, and code that runs on the GPU is often called device code, while code that runs on the CPU is host code. __glob...
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/*************************************************** * Module that multiply all the elements of a matrix by a number * Author: Alonso Vidales <alonso.vidales@tras2.es> * * To be compiled with nvcc -ptx matrix_set_bias_to_zero.cu * Debug: nvcc -arch=sm_20 -ptx matrix_set_bias_to_zero.cu * ************************...
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#include "includes.h" __global__ void cudaSEuclideanSumBackward_kernel(unsigned int size, float* diffInput, float* input, float* output, const float scale, const float beta, float* result) { const unsigned int index = blockIdx.x * blockDim.x + threadIdx.x; const unsigned int stride = blockDim.x * gridDim.x; if (beta !...
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#include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> #include <cuda_runtime.h> #define GPUERRCHK(ans) { gpuAssert((ans), __FILE__, __LINE__); } inline void gpuAssert(cudaError_t code, char *file, int line, bool abort=true) { if (code != cudaSuccess) { fprintf(stderr,"GPUassert: %s ...
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#include <iostream> int main() { int thread, block_x, block_y, block_z, grid_x, grid_y, grid_z, processor; thread = 0; block_x = 0; block_y = 0; block_z = 0; grid_x = 0; grid_y = 0; grid_z = 0; processor = 0; cudaSetDevice(0); cudaDeviceGetAttribute (&thread, cudaDevAttrMa...
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#include <stdio.h> int main() { int i[4] = {1,2,3,4}; int j[6] = {2,3,1,0,4,2}; // int k[6] = {0,0,0,0,0,0}; int k[6]; // float i[12] = {1.04537429, 3.45278132, 3.47493422, 2.24801288, 4.88137731, 1.66288503, 4.81317032, 4.63570752, 1.36892613, 3.32203655, 3.31923711, 2.27048096}; // float j[15] = {1.59982314, 4.7...
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#include <stdio.h> #include <time.h> #include <string.h> #include <stdint.h> //#include "../backend.h" /* Device */ __inline__ __device__ int get_index(){ return blockIdx.x * blockDim.x + threadIdx.x; } __inline__ __device__ int4 get_neighborhood(int index, int width, int length){ int4 neighbors; int col = in...
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// REQUIRES: clang-driver // REQUIRES: x86-registered-target // REQUIRES: nvptx-registered-target // RUN: %clang -### --target=i386-unknown-linux \ // RUN: --cuda-path=%S/Inputs/CUDA_80/usr/local/cuda \ // RUN: --ptxas-path=/some/path/to/ptxas %s 2>&1 \ // RUN: | FileCheck %s // CHECK-NOT: "ptxas" // CHECK: "/som...
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#include <cstddef> #include <stdio.h> namespace vecops { template<class T> __global__ void adder(T* ar1, T* ar2, T* result, const std::size_t ar_size) { for (std::size_t index = 0; index < ar_size; index += 1) { //printf("Adding numbers: %d, %d\n", ar1[index], ar2[index]); result[index] = ar1[index] + ar2[...
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#include<iostream> #include<vector> __device__ void derivative(float &x, float &y){y = 2*x;} __global__ void EulerKernel(float *x, float *y, float *res, int N, int n_itr, float del_t, float del_x){ int index = threadIdx.x + blockIdx.x*blockDim.x; float der_value; for(int it = 0; it < n_itr; it++){ derivative(x...
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#include <stdio.h> #include <stdlib.h> #include <string.h> #include <cuda.h> #include <cuda_runtime.h> #include <device_launch_parameters.h> #ifndef NDEBUG #define CHECK_STATUS(status) \ if (status != cudaSuccess) \ fprintf(stderr, "File: %s\nLine:%d Function:%s>>>%s\n", __FILE__, __LINE__, __FUNCTION__,\...
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#include "includes.h" __global__ void SumNewCentroidCoordinatesKernel( float *input, int imgWidth, int imgHeight, float *centroidCoordinates, int *nearestCentroid, float *pointsWeight, int inputSize ) { int threadId = blockDim.x*blockIdx.y*gridDim.x //rows preceeding current row in grid + blockDim.x*blockIdx.x //blo...
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#include "includes.h" __global__ void gpu_init(int *mapad, int max, int size) { /*Identificaciones necesarios*/ int IDX_Thread = threadIdx.x; int IDY_Thread = threadIdx.y; int IDX_block = blockIdx.x; int IDY_block = blockIdx.y; int shapeGrid_X = gridDim.x; int threads_per_block = blockDim.x * blockDim.y; int position =...
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#include<stdio.h> #include <sys/time.h> #define numKernels 512 #define hashTableWidth 12288 #define searchKernels 1024 #define numHashPerThread 24 #define numThreadsPerBlock 1 __device__ void swapTriplets(int *d_x,int *d_y,int *d_z,int *d_indexOrder, int index1,int index2) { int temp1,temp2,temp3; int temp4; temp...
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#include "includes.h" __global__ void make_pillar_feature_kernel( float* dev_pillar_point_feature_in_coors, float* dev_pillar_point_feature, float* dev_pillar_coors, int* dev_x_coors, int* dev_y_coors, float* dev_num_points_per_pillar, const int max_points, const int num_point_feature, const int grid_x_size) { int ith_...
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/* * CUDA C++ code to multiply two square matrices * * To compile and link this example, use * * nvcc matMul.cu -o matMul.x * * To run this code, use * * ./matMul.x */ #include <iostream> #include <stdio.h> // parameter describing the size of the matrices const int rows = 16; const int cols = 16; /...
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#include <iostream> #include <fstream> #include <vector> #include <stdio.h> using namespace std; __global__ void bfs(int n, int m, int q_size, int level, int *dist, int *neib, int *off, int *q_size_new, int *q_prev, int *q_next) { int tid = blockIdx.x * blockDim.x + threadIdx.x; if (tid < q_size) { int u = q_prev...
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#include <stdio.h> #include <stdlib.h> #include <cuda_runtime.h> #include <string.h> #include <ctype.h> #include <limits.h> #define INPUT_FILE "inp.txt" #define Q1A_OUT_FILE "q1a.txt" #define Q1B_OUT_FILE "q1b.txt" typedef struct vector { int *elements; int capacity; int size; } vector; // Method definitions v...
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/* This is a automatically generated test. Do not modify */ #include <stdio.h> #include <stdlib.h> #include <math.h> __global__ void compute(float comp, int var_1,float var_2,float var_3,int var_4,int var_5,float var_6,float var_7,float var_8,float var_9,float var_10,float var_11,float var_12,float var_13,float var_...
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#include <algorithm> #include <cuda.h> #include <cuda_runtime.h> #include <stdio.h> #include <stdlib.h> #include <sys/time.h> #include <thrust/device_vector.h> #include <thrust/host_vector.h> #include <thrust/iterator/zip_iterator.h> #include <thrust/random.h> #include <thrust/sort.h> #include <time.h> #define CUDA_CA...
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/* * ismin.cpp * GSPAN * * Created by Jinseung KIM on 09. 07. 19. * Copyright 2009 KyungHee. All rights reserved. * */ #include "gspan.cuh" using namespace std; bool gSpan::is_min () { if (DFS_CODE.size() == 1) //nếu như trong vector<DFS> chỉ có duy nhất 1 DFS thì nó là nhỏ nhất. return (true); DFS_C...
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#include <stdio.h> #include <sys/time.h> const int N_def (1 << 10); const int threadsPerBlock = 32; //const int blocksPerGrid = (N_def+threadsPerBlock-1) / threadsPerBlock; const int blocksPerGrid = 10; #define MAX(a,b) (a) > (b) ? (a) : (b) __global__ void cuda_max(int N, double *a, double *c) { // __shared__ ...
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#include <cstdio> #include "cuda.h" __global__ void helloWorld() { printf("Hello from block %d/%d\n", blockIdx.x, gridDim.x); } int main(int argc, char **argv) { helloWorld<<<6,1>>>(); cudaDeviceSynchronize(); return 0; }
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/*#include <cv.h> #include <highgui.h> #include <opencv2/imgproc/imgproc.hpp> #include <stdio.h> #include <math.h> #include <iostream> using namespace cv; using namespace std; int main() { VideoCapture cap(0); if(!cap.isOpened()) { printf("No hay camara web"); return -1; } //namedWindow("webcam"); Mat...
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#include <stdlib.h> #include <stdio.h> #include <math.h> #include <cuda.h> #include <cuda_runtime.h> __global__ void process_kernel1(const float* input1, const float* input2, float* output, int numElements){ int blockNum = blockIdx.z*(gridDim.x*gridDim.y) + blockIdx.y*gridDim.x + blockIdx.x; int threadNum = threadI...
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#include <stdio.h> __device__ int blockSum(int *b, int size) { int sum=0, i; for (i=0; i<size;++i) { sum += b[i]; } return sum; } // Compute the sum of each subblock and write the result to the first // index in "a" where the subblock starts. For this code to // work, Number of blocks * Number of threads ...
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#include<iostream> using namespace std; #define mask_width 16 #define tile_width 16 __constant__ float M_dc[mask_width][mask_width]; // save mask in constant memory __global__ void conv2d_kernel(float *N_d, float *P_d, int n) { int i = blockIdx.y * blockDim.y + threadIdx.y; // link local thread idx to global ...
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/******************************************************************************* * * probe a comuter for basic info about processing cores and GPU * * compile with: * * nvcc probe2.cu -L/usr/local/cuda/lib64 -I/usr/local/cuda-10.2/targets/x86_64-linux/include -lcuda -lcudart * * (in .tcshrc, please have:) * s...
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#include<iostream> #include<chrono> using namespace std; using namespace std::chrono; #define clock_now high_resolution_clock::now __global__ void minimum(int *a,int *b,int n) { int block=256*blockIdx.x; int mini=7888888; for(int i=block;i<min(256+block,n);i++) { if(mini>a[i]) { mini=a[i]; } } b[blo...
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#include <iostream> #include "../include/gpu_map.h" #include <thrust/device_vector.h> #define def_dvec(t) thrust::device_vector<t> #define to_ptr(x) thrust::raw_pointer_cast(&x[0]) using namespace std; const int MAP_SIZE = 100; __global__ void test(float *output){ gpu_map<int, float, MAP_SIZE> map; for(int i=...
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#include <stdio.h> #include <math.h> #include <time.h> #include <unistd.h> #include <cuda_runtime_api.h> #include <unistd.h> /****************************************************************************** * * * To compile: * nvcc -o linearRegressionByCuda linearRegressionByCuda.cu -lm * * To run: * ./li...
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#include "includes.h" __global__ void windowHann(float* idata, int length) { int tidx = threadIdx.x + blockIdx.x*blockDim.x; if (tidx < length) { idata[tidx] = 0.5*(1 + cos(2*tidx*PI_F / (length - 1))); } }
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#include <iostream> #include <stdio.h> #include "cuda_runtime.h" __global__ void cubic(const float * d_in, float * d_out) { int idx = threadIdx.x; float f = d_in[idx]; d_out[idx] = f * f * f; } int main() { const int ARRAY_SIZE=10; const int ARRAY_BYTES = ARRAY_SIZE * sizeof(float); float h_...
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#include "includes.h" __global__ void MaskInput( float* image, float* mask, float* maskedValues, float* output, int count ) { int id = blockDim.x*blockIdx.y*gridDim.x + blockDim.x*blockIdx.x + threadIdx.x; if (id < count) { output[id] = image[id] * mask[id] + maskedValues[id] * (1.0f - mask[id]); } }
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#include <iostream> #include <fstream> using namespace std; __global__ void addition( float* x, float* y, float* z, int num) { const unsigned int tid = threadIdx.x; const unsigned int bid = blockIdx.x; const unsigned int bdim = blockDim.x; const unsigned int gdim = gridDim.x; int step=bdim*gdim; for (int ...
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#include "includes.h" __global__ void multMatrix(int *d1_in, int *d2_in, int *d_out, int n, int m, int k){ int indx = threadIdx.x; int indy = threadIdx.y; int ind = indy*k+indx; //printf("%d %d\n",indy,indx); if(ind<n*k){ d_out[ind] = 0; for(int i=0;i<m;i++){ d_out[ind] += d1_in[indy*m+i]*d2_in[i*k+indx]; } } }
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#include <stdlib.h> #include <string.h> #include <time.h> #include <stdio.h> __global__ void sumArray(float *A, float *B, float *C) { int i = blockIdx.x; C[i] = A[i] + B[i]; } void initialData(float *ip, int size){ time_t t; srand((unsigned int)time(&t)); for(int i = 0; i < size; i++){ ip[i] = (float)( rand(...
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#include "includes.h" __global__ void add(int* in, int* out, int n){ int gid = threadIdx.x + blockIdx.x * blockDim.x; if(gid >= n) return ; extern __shared__ int temp[]; temp[threadIdx.x] = in[gid]; for(int offset=1; offset<n; offset=(offset<<1)){ __syncthreads(); if(threadIdx.x >= offset){ temp[threadIdx.x] += tem...
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#include<stdio.h> #include<stdlib.h> #define N 100 #define THREADS_PER_BLOCKS 10 //space for functions __global__ void reverseArrayBlock(int *dev_a,int *dev_b){ int bx = blockIdx.x; int tx = threadIdx.x; int old_id = blockDim.x*bx + tx; int new_id = (blockDim.x*gridDim.x) - 1 - old_id...
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__global__ void primal(float* u, float* u_, const float* f, const float* p1, const float* p2, const double tau, const int X, const int Y) { int x = blockIdx.x*blockDim.x + threadIdx.x; int y = blockIdx.y*blockDim.y + threadIdx.y; // center point int c = y*X + x; float div_x = 0.0f; float div_y = 0.0f; if ...
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/* Concurrent access on a counter with no lock. Atomicity Violation. Data Race in line 25. Intra Region Data Race. */ #include <stdio.h> // Macro for checking errors in CUDA API calls #define cudaErrorCheck(call) \ do{ ...
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#include <cassert> #include <cstdio> const int BLOCK_SIZE = 16; #define getX (conv ? blockI[i][threadIdx.x] : blockI[threadIdx.y][i]) #define getW (conv ? blockW[i][threadIdx.y] : blockW[i][threadIdx.x]) template <bool conv> __global__ void inf_dist_forward_kernel(const float* __restrict__ input, const float* __res...
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#include <iostream> #include <cstdlib> #include <time.h> #define TILE_WIDTH 32 /* multiplies matrices represented by a (m x n) and b (n x k) and assigns the value of ab to ans (m x k) matrix */ __global__ void matmul(float* a, float* b, float* ans, const int m, const int n, const int k) { int i = threadIdx.x + b...
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#include <stdio.h> #include <math.h> #include <time.h> #include <unistd.h> #include <cuda_runtime_api.h> #include <errno.h> #include <unistd.h> //To compile: nvcc -o cudalinear cudalinear.cu -lm //To run: ./cudalinear typedef struct point_t { double x; double g; } point_t; int n_data = 1000; __device__ int d_n...
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__global__ void extrapolateVelocities(const float * d_levelset, const float2 * d_surfacePoints, const float * d_velIn_x, const float * d_velIn_y, float * d_velOut_x, float * d_velOut_y)...