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accelerator/cuda: Check for cuda devices #11617

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May 12, 2023
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accelerator/cuda: Check for cuda devices #11617

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10 changes: 9 additions & 1 deletion opal/mca/accelerator/cuda/accelerator_cuda_component.c
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Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,15 @@ static opal_accelerator_base_module_t* accelerator_cuda_init(void)
if (!opal_cuda_support) {
return NULL;
}

int count = 0;
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Might as well move this line down below the cuInit() block (i.e., to where you know for sure that count will be used).

/* If cuInit fails or there are no cuda capable devices, return NULL. */
if (cuInit(0)) {
return NULL;
}
CUresult ret = cuDeviceGetCount(&count);
if (ret || count == 0) {
return NULL;
}
opal_accelerator_cuda_delayed_init();
return &opal_accelerator_cuda_module;
}
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