/2010 2:00 AM, Edwin Bennink wrote:
Dear gcc list,
I noticed that starting an OpenMP parallel section takes a
significant amount of time on Nehalem cpu's with hyper-threading
enabled.
If you think a question might be related to gcc, but don't know which
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Dear gcc list,
I noticed that starting an OpenMP parallel section takes a significant
amount of time on Nehalem cpu's with hyper-threading enabled.
The differences with HTT turned on and off are really huge:
- HTT disabled: about 100.000 parallel sections per second
- HTT enabled: about 15 pa
