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Question asked by shingoxlf on Apr 2, 2012
Latest reply on Apr 2, 2012 by notzed

Hi all,

I am writing a problem using multiple GPUs in OpenCL. So I used MPI.

When I test my code, it works perfectly on a cluster with Tesla C2050s which has 2GB global memory each.

However, when I move my code to a cluster with Tesla M2070s which has 5GB global memory each, I got error code -4 which is "CL_MEM_OBJECT_ALLOCATION_FAILURE"  when I try to write the GPU buffers.


I used the same input for both runs, and allocated 12 GPUs in both clusters, do you guys know what might be the problem?