[ESPResSo-users] CUDA warning for slower atomicAdd emulation

[Vincent Ustach]

Hi All,

Upon running make on a new build of the developer's version of Espresso, I saw this and several similar warnings:

../../src/lbgpu_cuda.cu:123:2: warning: #warning Using slower atomicAdd emulation

Is it a major concern for losing performance, or since it is related to an emulation is it only for debugging?

See attached for the results of make. I have the configure results as well, if that will help. By the way I am using cudatoolkit-5.5 and the GPU card is a Tesla M2050 GPU

Best Regards,

--Vincent Ustach
  University of California, Davis

resultsmake.txt
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resultsconfig.txt
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