Date: Mon, 8 Jul 2013 01:10:10 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: bug: GPU use in CPU-only formats On 7 Jul, 2013, at 18:22 , Sayantan Datta <std2048@...il.com> wrote: > I found the root cause of this problem. Nvidia blocks the thread after each clEnqueueNDRangeKernel call which is not the case with AMD. > http://www.khronos.org/message_boards/showthread.php/5822-non-blocking-call-to-clEnqueueNDRangeKernel WTF, that really sucks. So what they say in that thread is still true? It means we can't juggle two buffers or do CPU work during kernel execution. magnum
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