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CUDA: fix peer access logic (#3231)

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Johannes Gäßler 2023-09-17 23:35:20 +02:00 committed by GitHub
parent 111163e246
commit ee66942d7e
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1 changed files with 8 additions and 6 deletions
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14
ggml-cuda.cu
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@ -6286,12 +6286,14 @@ void ggml_cuda_set_peer_access(const int n_tokens) {
continue;
}
int canAccessPeer;
CUDA_CHECK(cudaDeviceCanAccessPeer(&canAccessPeer, id, id_other));
if (enable_peer_access) {
CUDA_CHECK(cudaDeviceEnablePeerAccess(id_other, 0));
} else {
CUDA_CHECK(cudaDeviceDisablePeerAccess(id_other));
int can_access_peer;
CUDA_CHECK(cudaDeviceCanAccessPeer(&can_access_peer, id, id_other));
if (can_access_peer) {
if (enable_peer_access) {
CUDA_CHECK(cudaDeviceEnablePeerAccess(id_other, 0));
} else {
CUDA_CHECK(cudaDeviceDisablePeerAccess(id_other));
}
}
}
}