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#include <stdio.h> #include <float.h> /* Function that normalizes the image */ void normalizeImage(float *image,int Size_i,int Size_j){ int Size = Size_i*Size_j; /* Find MIN */ float min = FLT_MAX; for(int i=0;i<Size;i++){ if (image[i]<min) min = image[i]; } /* Subtract min */ for(int i=0;i<Size;i++) image[i...
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#include <iostream> #include <vector> #include <set> #include <limits> #include <stdlib.h> #include <ctime> #include <thread> #include <iomanip> #include <sys/time.h> //#define INF std::numeric_limits<int>::max() #define INF 1147483647 template<std::size_t n> __device__ void dijkstra(int *graph, int graphIdx, int sour...
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#include "cuda_utils.cuh" #include <sstream> void cuda_check(const std::string &file, int line) { static std::string prev_file; static int prev_line = 0; cudaError_t e = cudaGetLastError(); if (e != cudaSuccess) { std::stringstream ss; ss << file << ", line " << line << ": " << cu...
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//pass //--blockDim=[8,8] --gridDim=[1,1] #include <cuda.h> #define _2D_ACCESS(A, y, x, X_DIM) A[(y)*(X_DIM)+(x)] ////////////////////////////////////////////////////////////////////////////// //// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF //// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING...
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#include "curand_kernel.h" #define NODE_TERMINAL -1 #define NODE_TOSPLIT -2 #define NODE_INTERIOR -3 __device__ void movedata() { } __device__ void sampledata(const int nclass, const int* nsamples, const int* samplefrom, const int maxnsamples, int* bagstart, curandState_t *randstate) { //Select random samples in...
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#include "includes.h" __global__ void saxpy(float *x, float *y, const float a) { const int i = blockIdx.x*blockDim.x + threadIdx.x; if (i<ARRAY_SIZE) { y[i] = a*x[i] + y[i]; } }
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#include "includes.h" __global__ void fitness_kernel(int* chromosome, int* collision) { /*unsigned int index = threadIdx.x + blockDim.x * blockIdx.x; unsigned int stride = blockDim.x * gridDim.x;*/ unsigned int tid = threadIdx.x; unsigned int bid = blockIdx.x; int temp = chromosome[bid]; int d = 0; extern __shared__ in...
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#include "includes.h" __global__ void _softback(int nrows, int ncols, float *y, float *dy) { /* y is layer output, i.e. unnormalized log probabilities. On output y will contain normalized probabilities. Conceptually this is a forward calculation but we do it here for efficiency. dy is the label matrix: each column is a...
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#include <stdio.h> // CUDA sample - elements // This is not a complete app! Need to add the main section // The memory is allocated and handled in a 'classical' way // Matrices are stored in row-major order: // M(row, col) = *(M.elements + row * M.width + col) typedef struct { int width; int height; float* ...
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//##############################################################################################################################################################################################################// //Aquila - An Open-Source GPU-Accelerated Toolkit for Cognitive and Neuro-Robotics Research ...
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/** * Author: Zachariah Bryant * Description: Testing file for various purposes. */ // ******************** // * Headers * // ******************** #include <sys/stat.h> #include <iostream> #include <stdio.h> #include <stdlib.h> #include <fstream> #include <string> #include "./Headers/Complex.cuh" #i...
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#include <device_launch_parameters.h> #include <cuda_runtime_api.h> #include <cstdio> // Device input vectors int *d_a; //Device output vector int *d_b; __global__ void naivePrefixSum(int *A, int *B, int size, int iteration) { const int index = blockIdx.x * blockDim.x + threadIdx.x; if (index < size) { ...
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#include "includes.h" __global__ void encryptKernel(char* deviceDataIn, char* deviceDataOut, int n, char *key, int keySize) { unsigned index = blockIdx.x * blockDim.x + threadIdx.x; if (index < n) deviceDataOut[index] = deviceDataIn[index] + key[index % keySize]; }
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#include <stdio.h> #include <math.h> #define PI 3.1415926535898 int main () { float r = 3.0; int shell = 10; float dr = r / shell; int count = 0; float r_iw, b_ij1, b_ij2, b_ijw, a_ijk1, a_ijk2, a_ijkw, w_x, w_y, w_z; // b_ij1 = b_ij, b_ij2 = b_i(j-1); same for a_ijk. for (int ii = 1; ii ...
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/* * Sum-Product Algorithm using GPU * * Written by: Zana Rashidi * * As part of the B.Sc. Project in Computer Engineering * * Computer Engineering Department, Sharif University of Technology * * Supervisor: Mahdi Jafari Siavoshani * * July 2017 */ #include <iostream> #include <cmath> #include <fstre...
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#include "includes.h" __global__ void kernel_256_one_1024(float *A, float *B, float *bnBias, float *bnScale, float *C) { int tile = blockIdx.x, part = blockIdx.y, in_channel = threadIdx.x, line = threadIdx.y; int ind = line*256 + in_channel; extern __shared__ float shared_[]; float *weights = shared_ + 256*4, *output ...
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#include <stdio.h> #include <cuda.h> #include <sys/time.h> __global__ void dkernel(unsigned *vector, unsigned vectorsize,int i) { unsigned id = blockIdx.x * blockDim.x + threadIdx.x; vector[id] = id; for(int g=1;g<=i;g++) __syncthreads();//barrier here } #define BLOCKSIZE 1024 int main(int nn, ch...
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#include <stdio.h> __global__ void add(int *a, int *b, int *c) { int i = threadIdx.x; *(c+i) = *(a+i) + *(b+i); } int main(void) { int N=4; int a[] = {3, 4, 5, 6}; int b[] = {5, 7, 8, 9}; int c[N]; // host copies of variables a, b & c int *d_a, *d_b, *d_c; // device copies of variables a, b & c int size = N*...
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#include <stdio.h> //#define DEBUGPRINT 0 __global__ void compute_entropy_gpu_kernel(double *tlag, double *pr, double *vtrans,int ntot, int irho, double ntol , double rgam, double gmaref,int ltot ){ int id = blockIdx.x*blockDim.x+threadIdx.x; if(id<ntot){ double rho= fmax(vtrans[ltot*(irho-1)+id],ntol); tlag[...
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#include "includes.h" __global__ void ThirdAngle(int *a1, int *a2, int *a3) { *a3 = (180-*a1-*a2); }
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__global__ void add_two_array_kernel(int nx, int ny, float *output, float *arr1, float *arr2){ const int x = threadIdx.x + blockDim.x * blockIdx.x; const int y = threadIdx.y + blockDim.y * blockIdx.y; int ij = nx * y + x; if (x < nx && y < ny){ output[ij] = arr1[ij] + arr2[ij]; } }
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/** 豸ʶ ǵijԶͨcuda API豸Ŀ */ #include "cuda_runtime.h" #include "device_launch_parameters.h" #include "driver_types.h" #include <stdio.h> int main() { cudaError_t cudaStatus; int num = 0; cudaDeviceProp prop; cudaStatus = cudaGetDeviceCount(&num); // Choose which GPU to run on, change this on a multi-GPU system. /...
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/* FFT_GPU Ye Wang */ #include <stdlib.h> #include <stdio.h> #include <math.h> //#define M_PI 3.141592653589793f #define thread_num 512 //#define N 1024 //#define N 2048 //#define N 4096 //#define N 8192 //#define N 16384 //#define N 32768 //#define N 65536 //#define N 131072 //#define N 262144 //#define N 524288 #d...
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#include<stdio.h> #include<stdlib.h> #include<sys/time.h> #define NUM 10000000 #define CUDA_ERROR_EXIT(str) do{\ cudaError err = cudaGetLastError();\ if( err != cudaSuccess){\ printf("Cuda Error: '%s' ...
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#include "includes.h" __global__ void cal_pi(float *sum, int nbin, float step, int nthreads, int nBLOCKS) { int i; float x; int idx = blockIdx.x*blockDim.x+threadIdx.x; // Sequential thread index across the BLOCKS for (i=idx; i< nbin; i+=nthreads*nBLOCKS) { x = (i+0.5)*step; sum[idx] += 4.0/(1.0+x*x); } }
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#include <stdio.h> #include <stdlib.h> #define BLOCK_SIZE 16 #define RANDOM_MN_RANGE 64 // Matrices are stored in row-major order: // M(row, col) = *(M.elements + row * M.stride + col) struct Matrix { int width; int height; int stride; float* elements; }; // Get a matrix element __device__ float GetE...
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#include <stdlib.h> #include <stdio.h> #include <cuda.h> #include <cuda_runtime.h> #include <time.h> #include <string.h> // taille du domaine const int Nx = 64 ; const int Ny = 64 ; const int GridSize = Nx*Ny ; // temps de simulation [s] et de reference const float T = 2.e+2; // boite de Lx*Ly [m] const float Lx = ...
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#include "includes.h" // Number of elements to put in the test array #define TEST_SIZE 16 #define NUM_BINS 10 //////////////////////////////////////////////////////////////// ////////////////// COPY EVERYTHING BELOW HERE ////////////////// //////////////////////////////////////////////////////////////// // Number of...
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// timestep subroutines #include "interface.h" __device__ static bool is_halo(sim_t &sim, int ibox) { if ((ibox % sim.nx) >= sim.nx-2) return true; if ((ibox / sim.nx) % sim.ny >= sim.ny-2) return true; if ((ibox / sim.nx) / sim.ny >= sim.nz-2) return true; return false; } __global__...
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#include <iostream> __global__ void mult_mat_vec_kernel(float* d_A, float* d_B, float* d_C, int n) { int idx = threadIdx.x + blockDim.x * blockIdx.x; if (idx < n) { int idx1 = idx * n; float sum = 0.0; for (int i = 0; i < n; ++i) { sum += d_A[idx1 + i] * d_B[i];...
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#include <cstdlib> #include <iostream> #include <cuda.h> __global__ void increment(float *val) { val[0]++; } void run_par_gpu() { int device; const int ngpu = 2; float *values[ngpu], currentDevice, *fromDevice; fromDevice = (float *)malloc(ngpu * sizeof(float)); for (device = 0; device < ngpu; device...
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#include <cuda.h> #include <stdio.h> #include <unistd.h> #include <sys/time.h> #define N (4) #define threshold (0.000000001) double rtclock(); void compare(); double *A, *B, *C,*RefOut; #define bSizeX (2) #define bNumx (N/bSizeX) #define bNumy (N/2) __global__ void p1_kernel(double*, double*, double*); int main(){ ...
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#define BLOCK_SIZE 256 #define SOFTENING 1e-9f typedef struct { float4 *pos, *vel; } BodySystem; void randomizeBodies(float *data, int n) { for (int i = 0; i < n; i++) { data[i] = 2.0f * (rand() / (float)RAND_MAX) - 1.0f; } } __global__ void applyForce(float4 *p, float4 *v, float4 *d, float dt, int n) { ...
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#include "includes.h" // Include files // Parameters #define N_ATOMS 343 #define MASS_ATOM 1.0f #define time_step 0.01f #define L 10.5f #define T 0.728f #define NUM_STEPS 10000 const int BLOCK_SIZE = 1024; //const int L = ; const int scheme = 1; // 0 for explicit, 1 for implicit /**********************************...
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//pass //--blockDim=64 --gridDim=64 --no-inline #include "cuda.h" __global__ void foo() { { int x = 4; } { int x = 2; } }
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// filename: freduce.cu #include <stdint.h> //====================================================================== __device__ __host__ void reduce_hash(uint32_t H[], uint8_t B[], int link_idx); //====================================================================== __device__ __host__ void reduce_hash(uint32_t H[...
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#include <cstdlib> #include <iostream> #include <cuda.h> #include <stdio.h> __global__ void gInitializeStorage(float* storage_d){ int i = threadIdx.x + blockIdx.x * blockDim.x; int j = threadIdx.y + blockIdx.y * blockDim.y; int N = blockDim.x * gridDim.x; storage_d[i + j * N] = (float)(i + j * N); } _...
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// This routine is used by SMS. // This routine returns a pointer to an exchange variable. // The pointers table in this routine must contain all the variables to be exchanged. // Eventually PPP will generate the pointers table. // Currently (April 2012) the pointers table is hard coded for FIM. // Author: Jacques Mid...
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#include <cuda.h> #include "cuda_runtime.h" // #include <cutil.h> #include "texture_fetch_functions.h" #include "device_functions.h" #include "device_launch_parameters.h" #include <cuda_profiler_api.h> #include <stdio.h> #include <iostream> #define DATATYPE int #define ARRAYLEN 128*1024*1024 inline void __getLastCu...
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#include <fstream> #include <iostream> #include <thrust/host_vector.h> #include <thrust/device_vector.h> #include <thrust/sort.h> #include <thrust/random.h> using namespace std; /* Compares two integers lexicographically from least to greatest. First the input integers are reversed. Next reversed integers are trave...
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#include <stdio.h> #include <cuda.h> //Device functions can only be called from other device or global functions. __device__ functions cannot be called from host code. //Global functions are also called "kernels". It's the functions that you may call from the host side using CUDA kernel call semantics (<<<...>>>). __...
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// Tests the phases generated for a CUDA offloading target for different // combinations of: // - Number of gpu architectures; // - Host/device-only compilation; // - User-requested final phase - binary or assembly. // REQUIRES: clang-driver // REQUIRES: powerpc-registered-target // REQUIRES: nvptx-registered-target ...
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// This example demonstrates parallel floating point vector // addition with a simple __global__ function. #include <stdlib.h> #include <stdio.h> // this kernel computes the vector sum c = a + b // each thread performs one pair-wise addition __global__ void vector_add(const float *a, const...
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// A2.cu #include <stdio.h> #include <stdlib.h> #include <math.h> #include <cuda.h> #include <cuda_runtime.h> template <unsigned int blockSize> __device__ void warpReduce(volatile double* sdata, int tid) { if (blockSize >= 64) sdata[tid] += sdata[tid + 32]; if (blockSize >= 32) sdata[tid] += sdata[tid + 16]; ...
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#include <stdio.h> __global__ void square(float * out, float * in){ int idx = threadIdx.x; float f = in[idx]; out[idx] = f * f; } int main(int argc, char ** argv) { const int ARRAY_SIZE = 64; const int ARRAY_BYTES = ARRAY_SIZE * sizeof(float); // declare memory pointers float * in, * out; // Alloc...
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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> /****************************************************************************** * This program takes an initial estimate of m and c and finds the associated * rms error. It...
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extern "C" __global__ void kernel0(int* C, int loop) { int id = threadIdx.x + blockIdx.x * blockDim.x; for (int i = 0; i < loop; i++) { for (int j = 0; j < loop; j++) { C[id] += id; } } } extern "C" __global__ void kernel1(int* C, int loop) { int id = threadIdx.x + blockIdx.x * blockDim.x; for (int i...
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/*--------------------------------------------------------------------------*\ Copyright (c) 2008-2010, Danny Ruijters. All rights reserved. http://www.dannyruijters.nl/cubicinterpolation/ This file is part of CUDA Cubic B-Spline Interpolation (CI). Redistribution and use in source and binary forms, with or without mo...
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#include <stdio.h> #include <time.h> #define N 4096//矩阵的N次方 #define BlockNum 1//block的数量 #define ThreadNum 64 //每个block中threads的数量 #define m 100//每个行有多少个元素,即矩阵的维度 __global__ void Gpu_martixN(double* Gpu_martix, double* Gpu_res) { //每个GPU核函数计算矩阵的一行 int tid=blockIdx.x*blockDim.x*blockDim.y+threadIdx.x; doub...
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#include "includes.h" __global__ void sumArrayOnGPU(float *A, float *B, float *C){ // スレッドIDを割り当てる int i = threadIdx.x; C[i] = A[i] + B[i]; }
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#include "includes.h" #define N 10000000 __global__ void c_code(void){ }
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#include "cuda_runtime.h" #include "device_launch_parameters.h" #include <stdio.h> int main() { return 0; }
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#include <stdio.h> #define N 8192 #define TILE 32 #define SIZE N*N __global__ void transpose_gpu(double *b, const double *a, const int size) { int x = blockIdx.x * TILE + threadIdx.x; int y = blockIdx.y * TILE + threadIdx.y; int width = gridDim.x * TILE; for (int i = 0; i < TILE; i+= size) ...
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#include<stdio.h> #include<cuda.h> #define N 100 __global__ void func(int *a) { a[threadIdx.x] = threadIdx.x * threadIdx.x; } //This won't work since GPU and CPU will have different memory and the array is assigned in CPU //The GPU can't access the same memory // int main() // { // int a[N] = {0}, i = 0; ...
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#include "includes.h" __global__ void forward_maxpool_layer_kernel(int n, int in_h, int in_w, int in_c, int stride_x, int stride_y, int size, int pad, float *input, float *output, int *indexes) { int h = (in_h + pad - size) / stride_y + 1; int w = (in_w + pad - size) / stride_x + 1; int c = in_c; int id = (blockIdx.x ...
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/* * Copyright 2016 Alexander Terenin * * Licensed under the Apache License, Version 2.0 (the "License") * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agr...
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#include "includes.h" /* Matrix normalization. * Compile with "nvcc matrixNormCuda.c -lm" */ /* Program Parameters */ #define N 8000 /* Matrix size */ int blocks_per_grid = 32; int threads_per_block = 256; /* Matrices */ float A[N*N], B[N*N]; /* CUDA arrays */ float *A_d, *B_d; /* Initialize A and B*/ __global__...
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/* { std::cout << "calculate face centroids with cuda (gather)\n"; vector<float3> centroids; auto time = ab::perf::execution_time([&] {calculate_face_centroids_he_parallel(&he_mesh, centroids); }); std::cout << "calculated centroids in " << time.count() << "ns\n"; string he_centroid_fn = fn + "-he-cuda-face-...
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#include <stdio.h> #include <stdlib.h> #include <string.h> #include <math.h> #include <stdint.h> #define MASTER 0 #define MARGIN 1e+30 #define DIM 2 /* Two-dimensional system */ #define X 0 /* x-coordinate subscript */ #define Y 1 /* y-coordinate subscript */ #define GRAIN_SIZE 10 #define WORK_TAG 1 #define K...
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//SAXPY - Single-Precision A*X Plus Y #include <stdio.h> #include <sys/time.h> #define BLOCK_SIZE 400 #define NUM_PARTICLES 100000 #define NUM_ITERS 1000 struct particle{ float3 pos; float3 v; }; double cpuSecond() { struct timeval tp; gettimeofday(&tp,NULL); return ((double)tp.tv_sec + (double)t...
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#include "includes.h" /* Problem 1: initialize array of size 32 to 0 Problem 2: change array size to 1024 Problem 3: create another kernel that adds i to array[ i ] Problem 4: change array size 8000 (check answer to Problem 3 still works) */ //initialize array to 0 //add i to array[ i ] __global__ void kernel2( int ...
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// Matrix Multiplication in gpu with and without tiling. // Compile with: nvcc -o test matrix_multiplication.cu -std=c++11 #include <stdio.h> #include <stdlib.h> #include <math.h> #include <random> #include <iostream> #include <chrono> #define TS 32 // Multiplies matrices using GPU with 2D grid __global__ void multi...
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//pass //--blockDim=[1024,1] --gridDim=[4,1] #include <cuda.h> ////////////////////////////////////////////////////////////////////////////// //// Copyright (c) Microsoft Corporation. All rights reserved //// This software contains source code provided by NVIDIA Corporation. //////////////////////////////////////////...
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#include<stdio.h> //#include<cuda.h> #include<cuda_runtime.h> #define N 32 #define T 32 // max threads per block #include <stdio.h> __global__ void vecAdd (int *a, int *b, int *c); int main() { int a[N], b[N], c[N]; int *dev_a, *dev_b, *dev_c; // initialize a and b with real values (NOT SHOWN) int size = N * sizeo...
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#include <cuda_runtime.h> #include <stdio.h> int main(int argc, char **argv) { int devcnt = 0; cudaError_t e = cudaGetDeviceCount(&devcnt); if (e != cudaSuccess) { printf("cudaGetDeviceCount returned %d\n%s\n", (int) e, cudaGetErrorString(e)); exit(EXIT_FAIL...
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#include "cuda_runtime.h" #include "device_launch_parameters.h" #include <stdio.h> #include <cmath> #define n 10000 #define BLOCK 10 __global__ void Su(float *S_d, float *x) { int i = threadIdx.x + blockIdx.x*blockDim.x; float q = 1.0; for (int j = 1; j <= *x; j++) { q = q*i; } S_d[i] = 1./q; } int main() {...
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#include "includes.h" __global__ void gCopyCols(float* out, const float* in, size_t rows, size_t colsIn, const size_t* sourceColIdx, size_t colsOut) { for(int bid = 0; bid < rows; bid += gridDim.x) { int j = bid + blockIdx.x; if(j < rows) { const float* rowIn = in + j * colsIn; float* rowOut = out + j * colsOut; for(i...
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#include <cstdio> #include <cuda_runtime.h> #define SIZE 5 #if defined(NDEBUG) // release mode #define CUDA_CHECK(x)(x) #else //debug mode #define CUDA_CHECK(X) do{\ (X);\ cudaError_t e = cudaGetLastError();\ if(cudaSuccess != e){\ printf("cuda failure %s at %s : %d", cudaGetErrorStri...
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/********************************************************************** * DESCRIPTION: * Serial Concurrent Wave Equation - C Version * This program implements the concurrent wave equation *********************************************************************/ #include <stdio.h> #include <stdlib.h> #include <math...
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/***************************************************************************//** * \file calculateForce.cu * \author Anush Krishnan (anush@bu.edu), * \author Christopher Minar (minarc@oregonstate.edu) * \based of original cuIBM */ #include "calculateForce.h" namespace kernels { /** * \brief Calculates drag usi...
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#include <stdio.h> #include <string.h> #include <stdlib.h> #include <time.h> #include <assert.h> /** Max size 1024 */ __global__ void kreduce(unsigned int *vec, int size){ int tid = threadIdx.x; int gid = blockIdx.x * blockDim.x + tid; for(int offset=(size/2);offset >= 1;offset /= 2){ if(tid < offset){ vec[...
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#include "includes.h" __global__ void kern_ApplyCapacity(float* sinkBuffer, float* capBuffer, int size) { int idx = CUDASTDOFFSET; float value = sinkBuffer[idx]; float cap = capBuffer[idx]; value = (value < 0.0f) ? 0.0f: value; value = (value > cap) ? cap: value; if( idx < size ) { sinkBuffer[idx] = value; } }
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#include<cuda.h> #include<cuda_runtime.h> #include<stdio.h> #include<stdlib.h> __global__ void vectorAdd(float*, float*, float*, int); //------------------------------------------------------------- __global__ void vectorAdd(float* A, float* B, float *C, int n) { //CUDA kernel defination int i = threadIdx.x...
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#include <stdio.h> #define CHECK(e) { int res = (e); if (res) printf("CUDA ERROR %d\n", res); } #define THRESH 10000 struct Image { int width; int height; unsigned char *img; unsigned char *dev_img; }; int main(int argc, char **argv) { Image source; if (argc != 2) { printf("Usage: exec filenam...
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#include <stdio.h> #include <stdlib.h> #include <time.h> #include <sys/time.h> #include <sys/types.h> #define DEBUG_ENABLE 0 #define ERROR_TRACING 0 #define V 7000 #define INF 1000000 ///const int INF = 1000000; ///const int V = 7000; void input(char *inFileName); void output(char *outFileName); void block_APSP(int B)...
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#include <stdlib.h> #include <stdio.h> __global__ void kernel11(int *a, int *b, int *c) { a[blockIdx.y*blockDim.x*gridDim.x+blockIdx.x*blockDim.x + threadIdx.x]=blockIdx.x; b[blockIdx.y*blockDim.x*gridDim.x+blockIdx.x*blockDim.x + threadIdx.x]=blockIdx.y; c[blockIdx.y*blockDim.x*gridDim.x+blockIdx.x*blockDim...
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#include "includes.h" __global__ void compute_Gamma_kernel(double* Gamma, int Gamma_n, int Gamma_ld, double* N, int N_r, int N_c, int N_ld, double* G, int G_r, int G_c, int G_ld, int* random_vertex_vector, double* exp_V, double* exp_delta_V) { int i = blockIdx.x * blockDim.x + threadIdx.x; int j = blockIdx.y * blockDim...
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/* * Copyright (c) 2012 by Jrn Dinkla, www.dinkla.com, All rights reserved. */ #include <stdio.h> __global__ void hello() { int i = threadIdx.x; printf("Hello World %i\n", i); } int main() { hello<<<1, 3>>>(); cudaDeviceSynchronize(); }
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#include <stdlib.h> #include <stdio.h> #include <math.h> __global__ void fibonacci(int n) { int novoN = abs((n - (int) blockIdx.x + (int) threadIdx.x) % n); int aux = novoN; long long int a = 0; long long int b = 1; while (aux-- > 1) { long long int t = a; a = b; b += t; } printf("Fibonacc...
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extern "C" __global__ void setCoeffPoolKernel( int nBatch,int rbs,int nDegree,int nDScale, // arrays pointer float *CA, float *SA, // pointer of array of pointer to pointer of array in arrays, nevermind i just stun you. // p(i) = data(i + size(data)) float **CP, float **SP ) { int taskIdx = blockIdx.x * blockDim.x...
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#include <stdio.h> #define N 512 __global__ void add(int *a, int *b); int main() { int *a, *b; int *d_a, *d_b; int i; // allocate space for device copies cudaMalloc(&d_a, N*sizeof(int)); cudaMalloc(&d_b, N*sizeof(int)); //cudaMalloc(&d_c, sizeof(int)); // allocate variables a = (int *)malloc(N*sizeof(int)...
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#define _USE_MATH_DEFINES #include "cuda_runtime.h" #include "device_launch_parameters.h" #include <stdio.h> #include <stdlib.h> #include <math.h> #include <iostream> cudaError_t addWithCuda(int *c, const int *a, const int *b, unsigned int size); void print_arr(int*, int, int); void print_arr(double*, int, int); do...
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#include <stdio.h> #include <stdlib.h> #include <math.h> #include <cuda_runtime.h> // Host input vectors. float *h_a; float *h_b; // Host output vector. float *h_c; // Device input vectors. float *d_a; float *d_b; // Device output vector. float *d_c; // Size of arrays. int n = 0; /* CUDA kernel. Each thread takes c...
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#include "cuda_runtime.h" #include "device_launch_parameters.h" #include <cstdio> __global__ void hello_cuda() { printf("hello CUDA world\n"); } int main(void) { // hello_cuda<<<1, 1>>>(); //hello_cuda<<<1, 20>>>(); // dim3 block(4); // dim3 grid(8); dim3 block(8, 2); dim3 grid(2, 2); hello_cuda<<<block, ...
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// do fft by cuda
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#include <stdlib.h> #include <iostream> #include <string> #include <fstream> static void HandleError( cudaError_t err, const char *file, int line) { if (err != cudaSuccess) { std::cout << cudaGetErrorString( err ) << " in " << file << " line " << line << std::endl; exit(EXIT_FAILURE); } } #define HANDLE_ER...
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//Source: https://kb.iu.edu/d/bdmg //INDIANA UNIVERSITY /********************** mat_mul.cu ******************************/ #include <stdlib.h> #include <stdio.h> #define M 256 #define P 128 #define N 64 #define BLKSIZ 16 __global__ void mat_mul(float *Ad, float *Bd, float *Cd); int ma...
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#include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/time.h> #define BLOCK_SIZE 16 #define HEADER_SIZE 122 #define BLOCK_SIZE_SH 18 typedef unsigned char BYTE; /** * Structure that represents a BMP image. */ typedef struct { int width; int height; float *data; } BMPImage; typ...
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// metropolis1.cu /* * A simple CUDA-enabled program that approximates Pi by evaluating * Integrate[ Sqrt[1-x^2], {x,-1,1} ] * using Metropolis Monte Carlo, with the weight function A*(1-x^2) * where A is a normalization factor */ #include <iostream> #include <curand.h> #include <curand_kernel.h> #include <st...
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/* * Shift array forward and sync with barriers * * compile: * nvcc -o barriers barriers.cu */ #include <stdio.h> #define ARRAY_SIZE 16 __global__ void shiftArray() { int idx = threadIdx.x; __shared__ int array[ARRAY_SIZE]; array[idx] = threadIdx.x; __syncthreads(); if (idx < ARRAY_SIZE - 1) { i...
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#include "includes.h" __global__ void countRest(int *bin, int *bin_counters, const int num_bins, const int maxBin, const int n) { unsigned int xIndex = blockDim.x * blockIdx.x + threadIdx.x; if ( (xIndex < n) & (bin[xIndex]<num_bins) ) if (bin[xIndex]>= maxBin) atomicAdd(bin_counters+bin[xIndex],1); }
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// ******************************************************************************************************************** // PURPOSE : Index calculations for 2D Grid block with 1D thread block * // LANGUAGE : CUDA C / CUDA C++ * // AS...
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#include <cassert> #include <chrono> #include <cstdio> #include <cstdlib> #include <cstring> #include <iostream> #include <random> __global__ void multiplication( int * a, int * b, int * c, int a_rows, int a_columns, int b_rows, int b_columns, int c_rows, ...
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/* * Copyright 2016 Alexander Terenin * * Licensed under the Apache License, Version 2.0 (the "License") * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agr...
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#include <stdio.h> #include <assert.h> #include <stdlib.h> #include <sys/time.h> #include <math.h> #define warp_size 32 #define Hwarp_size 16 #define A 0 #define B 15 void checkCUDAError(const char* msg); __host__ __device__ inline double f(double x) { return exp(x)*sin(x); } __global__ void romberg(double a, doubl...
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#include "MuonSimu.cuh" __global__ void evt_calculate_add(int *evt_res_list,int *evt_res_back,int evtnum,int pmtnum) { int id = blockIdx.x*blockDim.x+threadIdx.x; // int evt_res_by_pmt = 0; if (id < evtnum) // The number of threads can't exceed the number of event { for(int i=0; i<pmtnum; i+...
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#include <stdio.h> #include <cuda.h> const int N = 7; const int blocksize = 7; __global__ void hello(char *a, int *b) { int idx = blockIdx.x * blockDim.x + threadIdx.x; // Finds the thread_id //a[threadIdx.x] += b[threadIdx.x]; a[idx] += b[idx]; printf("yan yan yan! \n"); }...
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#include "stdio.h" #include <time.h> #include <sys/time.h> typedef int DTYPE; void matrix_multiplication_serial_1(DTYPE* a, DTYPE* b, DTYPE* c, int m, int n, int l) { for(int i = 0; i < m; i++) { for(int j = 0; j < n; j++) { DTYPE temp = 0; for(int k = 0; k < l; k++) ...
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#include <stdio.h> #define MAXN 2003 __device__ __host__ int CeilDiv(int a, int b) { return (a-1)/b + 1; } __device__ int neighbor(int index, int n, char* cuT){ int num; num = cuT[index-n-1] + cuT[index-n-0] + cuT[index-n+1] + cuT[index-0-1] + cuT[index-0+1] + cuT[index+n-1] + cuT[index+n-0] + cuT[index+...
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#include <algorithm> #include <assert.h> #include <iostream> #include <math.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <sys/time.h> #include <cuda_runtime.h> int N = 1024; // length of vector A float* d_A = NULL; // Pointer to vector A in device memory double time_memcpy = 0; double time_...