tipe/src/utils.c

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#include <stdlib.h>
#include <stdio.h>
#ifdef USE_CUDA
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#ifndef __CUDACC__
#include "cuda_runtime.h"
#endif
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#endif
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#include "include/memory_management.h"
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#include "include/colors.h"
#include "include/utils.h"
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int i_div_up(int a, int b) { // Partie entière supérieure de a/b
return ((a % b) != 0) ? (a / b + 1) : (a / b);
}
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#ifdef __CUDACC__
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extern "C"
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#endif
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bool check_cuda_compatibility() {
#ifdef __CUDACC__
int nDevices;
cudaDeviceProp prop;
cudaGetDeviceCount(&nDevices);
if (nDevices == 0) {
printf("Pas d'utilisation du GPU\n\n");
return false;
}
printf("GPUs disponibles:\n");
for (int i=0; i < nDevices; i++) {
cudaGetDeviceProperties(&prop, i);
printf(" - %s\n\t - Compute Capability: %d.%d\n\t - Memory available: ", prop.name, prop.major, prop.minor);
printf_memory(prop.totalGlobalMem);
printf("\n\t - Shared Memory per block: ");
printf_memory(prop.sharedMemPerBlock);
printf("\n\n");
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}
cudaGetDeviceProperties(&prop, 0);
printf("Utilisation du GPU: " BLUE "%s" RESET "\n\n", prop.name);
if (prop.sharedMemPerBlock != MEMORY_BLOCK) {
printf_warning((char*)"La taille des blocs mémoire du GPU et celle utilisée dans le code diffèrent.\n");
printf("\tCela peut mener à une utilisation supplémentaire de VRAM.\n");
printf("\tChanger MEMORY_BLOCK à %ld dans src/include/memory_management.h\n", prop.sharedMemPerBlock);
}
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return true;
#else
printf("Pas d'utilisation du GPU\n\n");
return false;
#endif
}