How to simulate Atomic Operations in Tesla K20 GPU?

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Peter Wittek

This is strange. All GPUs except some ancient ones and all CUDA versions from 1.1 support atomic operations:

http://supercomputingblog.com/cuda/cuda-tutorial-4-atomic-operations/

Are you sure this is not some configuration issue? Can you run other CUDA programs on the K20 without errors?

Ahmed Hassan Yousef

Thanks a lot. It seems that the default computing capability is 1.0. I recompiled using computing capability 2.0 and it worked.