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cudaSetDevice in the thread function

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This commit is contained in:
Stas Polonsky
2024-02-16 16:35:04 +00:00
parent 8dd52306dc
commit 319358427f
1 changed files with 8 additions and 1 deletions
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9
examples/c++/multi-gpu-poseidon/example.cu
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@@ -7,6 +7,7 @@
// select the curve
#define CURVE_ID 2
#include "appUtils/poseidon/poseidon.cu"
#include "utils/error_handler.cuh"
using namespace poseidon;
using namespace curve_config;
@@ -23,6 +24,12 @@ const int size_col = 11;
// this function executes the Poseidon thread
void threadPoseidon(device_context::DeviceContext ctx, unsigned size_partition, scalar_t * layers, scalar_t * column_hashes, PoseidonConstants<scalar_t> * constants) {
cudaError_t err_result = CHK_STICKY(cudaSetDevice(ctx.device_id));
if (err_result != cudaSuccess) {
std::cerr << "CUDA error: " << cudaGetErrorString(err_result) << std::endl;
return;
}
// CHK_IF_RETURN(); I can't use it in a standard thread function
PoseidonConfig column_config = {
ctx, // ctx
false, // are_inputes_on_device
@@ -30,7 +37,7 @@ void threadPoseidon(device_context::DeviceContext ctx, unsigned size_partition,
false, // input_is_a_state
false, // aligned
false, // loop_state
false, // is_async
true, // is_async
};
cudaError_t err = poseidon_hash<scalar_t, size_col+1>(layers, column_hashes, (size_t) size_partition, *constants, column_config);
checkCudaError(err);