英語 での The number of threads の使用例とその 日本語 への翻訳
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Multithreading Number of render threads Controls the number of threads used for rendering.
If you do not specify the number of threads, the OpenMP* runtime uses the number of logical processors available in the affinity mask of the thread that initially goes parallel.
To ensure that your application has deterministic behavior with OpenMP* parallelization and does not adjust the number of threads dynamically at run time, set MKL_DYNAMIC and OMP_DYNAMIC to FALSE.
But you can specify the number of threads in the crawl settings simultaneously run crawl setting number is not indicates the number of threads to start.
If you encounter problems with MPICH and setting of the number of threads is greater than one, first try setting the number of threads to one and see whether the problem persists.
However, setting MKL_DYNAMIC=FALSE does not ensure that Intel MKL will use the number of threads that you request. The library may have no choice on this number for such reasons as system resources.
Fixed: Occasionally an exported file that was encoded by the x264 encoder was corrupted depending on a certain CPU core and the number of threads.
Significant increase of the number of threads adds to the cost of offloading code, but as a rule, a reasonably large number of threads delivers the best results.
With OpenMP*, the number of threads is chosen by the compiler, so programs that work well regardless of the number of threads are highly desirable.
To fix the problem, one can either significantly modify the code so that the code will not use the number of threads or share the work between a correct number of threads(for example, 2 threads). .
One Commander Configuration offers you to Change the look and feel Metadata preview details Control performance if it gets heavy on the system by reducing the number of threads which run parallel.
To fix the problem one can either significantly modify the code so that the code will not use the number of threads or share the work between a correct number of threads(e.g. 2 threads). .
Caution Avoid over-prescribing the number of threads, which may occur, for instance, when the number of MPI ranks per node and the number of threads per node are both greater than one.
To prevent the appearance of such messages, it is recommended to increase the amount of RAM of your computer, switch to 64-bit Windows, and optimize the scanning parameters in the program settings(reduce the number of threads, limit the number of pages for parsing).
If you want the library to use nested parallelism, and the thread within a parallel region is compiled with the same OpenMP compiler as Intel MKL is using, you may experiment with setting MKL_DYNAMIC to FALSE and manually increasing the number of threads.
Intel MKL will scale down the number of threads to the number of physical cores.
Tnum' specifies the number of threads.