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[ESPResSo-users] CUDA warning for slower atomicAdd emulation

From: Vincent Ustach
Subject: [ESPResSo-users] CUDA warning for slower atomicAdd emulation
Date: Wed, 29 Jan 2014 16:35:41 -0800

Hi All,

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

../../src/ 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

Attachment: resultsmake.txt
Description: Text document

Attachment: resultsconfig.txt
Description: Text document

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