![]() Note: after mounting the downloaded disk image, you may need to control-click on the CUDA installer package to open it.īelow is an example of how BOINC will report your GPU: To use BOINC 7.4.26 and beyond with older NVIDIA GPUs on Macintosh computers, you must install an older version of the drivers. You can check your GPU’s Compute Capability at The Macintosh installer for BOINC 7.4.26 includes a ReadMe, which now says:ĬUDA UPGRADE WARNING: Do not upgrade to CUDA 6.5 or later if you have an older NVIDIA GPU with Compute Capability 1.3 or less. Notice we are talking about OpenCL applications, not just CUDA apps. For the moment Seti will rely on the use of the validators to weed out these erroneous tasks from the correct ones. In addition, the people working on have found that OpenCL applications return incorrect results on Windows computers with older GPUs which have the NVIDIA 340.xx range of drivers (those which have CUDA 6.5), even though it appears to the user that it works properly. Seti Astropulse v7 and Collatz Conjecture) cause frequent kernel panics (i.e, they crash the OS!) on systems with older NVIDIA GPUs. We have found that once CUDA 6.5 is installed on Macintosh computers, OpenCL applications (e.g. Nvidia released CUDA 6.5 earlier this year and in its documentation it states that it will drop support for all compute capability GPUs 1.0 to 1.3.ĭespite NVIDIA's claims that CUDA 6.5 still supports GPUs with compute capabilities 1.0 through 1.3, we have found that it does not. This happens only when you updated your drivers to 340.xx or later, or otherwise added CUDA 6.5 support on your computer. When BOINC 7.4 is released to the public, you who run older Nvidia GPUs may notice that your GPU is no longer being used by BOINC for Macintosh. ![]()
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