Re: [Starpu-devel] StarPU 1.2.0 not working with CUDA 8 and Ubuntu

[Samuel Thibault <samuel.thibault@inria.fr>]

Hello,

Gabriel Gazolla, on Wed 16 Nov 2016 10:23:41 -0200, wrote:
> I am having problems on making work StarPU 1.2.0 and CUDA 8 on Ubuntu 14.04 
> or
> 16.04.

I've just tried starpu 1.2.0 on CUDA 8 on Ubuntu 16.10 (I didn't look
for backports for 14.04 or 16.04), and it works just fine, so we really
need the debugging details I have asked for in my previous mail.

Also, could you try the attached trivial program, to make sure that the
CUDA driver basically works?

Samuel
#include <stdio.h>
#include <cuda.h>
#include <cuda_runtime.h>

int main(void) {
        int n, i, version;
        cudaError_t err;

        err = cudaGetDeviceCount(&n);
        if (err)
        {
                fprintf(stderr,"cuda error %d\n", err);
                exit(1);
        }
        cudaDriverGetVersion(&version);
        printf("driver version %d\n", version);
        cudaRuntimeGetVersion(&version);
        printf("runtime version %d\n", version);
        printf("\n");

        for (i = 0; i < n; i++) {
                struct cudaDeviceProp props;
                printf("CUDA%d\n", i);
                err = cudaGetDeviceProperties(&props, i);
                if (err)
                {
                        fprintf(stderr,"cuda error %d\n", err);
                        continue;
                }
                printf("%s\n", props.name);
                printf("%0.3f GB\n", (float) props.totalGlobalMem / (1<<30));
                printf("%u MP\n", props.multiProcessorCount);
                printf("\n");
        }
        return 0;
}