Messages in this thread | | | Date | Fri, 24 Apr 2015 09:04:13 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: Interacting with coherent memory on external devices |
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On Thu, 23 Apr 2015, Jerome Glisse wrote:
> The numa code we have today for CPU case exist because it does make > a difference but you keep trying to restrict GPU user to a workload > that is specific. Go talk to people doing physic, biology, data > mining, CAD most of them do not care about latency. They have not > hard deadline to meet with their computation. They just want things > to compute as fast as possible and programming to be as easy as it > can get.
I started working on the latency issues a long time ago because performance of those labs was restricted by OS processing. A noted problem was SLABs scanning of its objects every 2 seconds which caused pretty significant performance regressions due to the delay of the computation in individual threads.
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