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gpu_tp1

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JOLIMAITRE Matthieu 2024-03-10 21:31:32 +01:00
parent 917b2258ad
commit 6054d1ada0
6 changed files with 264 additions and 0 deletions
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gpu/tp1/c/src/ex1.cu Normal file
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#include <iostream>
#define TO_K(X) X / 1000
#define TO_G(X) X / 1000000000
#define FMT_3D(X) "(" << (X)[0] << ", " << (X)[1] << ", " << (X)[2] << ")"
int main(int argc, char const *argv[])
{
// step 01
int device_count = -1;
cudaGetDeviceCount(&device_count);
std::cout << "device_count = " << device_count << "\n";
for (auto i = 0; i < device_count; ++i)
{
std::cout << "device [" << i << "]:\n";
struct cudaDeviceProp device_prop;
cudaGetDeviceProperties(&device_prop, i);
std::cout << "\t'device_prop.name' : " << device_prop.name << "\n";
std::cout << "\t'device_prop.totalGlobalMem' : " << TO_G(device_prop.totalGlobalMem) << "\n";
std::cout << "\t'device_prop.sharedMemPerBlock' : " << TO_K(device_prop.sharedMemPerBlock) << "\n";
std::cout << "\t'device_prop.maxThreadsPerBlock' : " << device_prop.maxThreadsPerBlock << "\n";
std::cout << "\t'device_prop.maxThreadsDim' : " << FMT_3D(device_prop.maxThreadsDim) << "\n";
std::cout << "\t'device_prop.maxGridSize' : " << FMT_3D(device_prop.maxGridSize) << "\n";
std::cout << "\t'(device_prop.major, device_prop.minor)' : " << device_prop.major << "." << device_prop.minor << "\n";
std::cout << "\t'device_prop.warpSize' : " << device_prop.warpSize << "\n";
std::cout << "\t'device_prop.regsPerBlock' : " << device_prop.regsPerBlock << "\n";
std::cout << "\t'device_prop.multiProcessorCount' : " << device_prop.multiProcessorCount << "\n";
}
return 0;
}
// # Question 1
// Avec 49152 octets de mémoire par bloc, il est possible de stocker 49152/4 = 12288 nombres flotants 32bit.