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Mixed MPI-OpenMP programming
http://www.uio.no/studier/emner/matnat/ifi/INF3380/v10/undervisningsmateriale/inf3380-week14.pdf转载 2013-07-02 14:54:32 · 519 阅读 · 0 评论 -
Cache 优化(矩阵乘积为例)
Degrees of Latency The latency of data access becomes greater with each cache level. Latency of memory access is best measured in CPU clock cycles. One cycle occupies from 4 to 6 nanoseconds, dep原创 2013-08-21 03:47:39 · 4014 阅读 · 0 评论 -
OpenMP教程
http://124.202.164.12/download/38387800/53858482/3/pdf/220/50/1362281275356_306/omp-hands-on-SC08.pdf 注:openmp reduction 效率很差(2核测试) 对于双核的虚拟4核机器,如果开4个线程,效率差,以积分计算为例,不如串行计算 但当只开2个线程时,速度差不多是串行的两倍,所以还是原创 2013-08-09 20:39:47 · 1866 阅读 · 0 评论 -
cuda计算经典问题搜集
What is the canonical way to check for errors using the CUDA runtime API?原创 2013-08-15 13:07:53 · 560 阅读 · 0 评论 -
gotoBlas 与 lapack
GotoBlas2库 Trouble compiling GotoBLAS2 on newer CPU Tips for building GotoBLAS and LAPACK 用 BLAS/LAPACK 编写矩阵运算程序 LAPACK(3)——线性方程组求解 Numerical Linear Algebra Packages on Linu原创 2013-08-15 12:17:09 · 843 阅读 · 0 评论 -
cudaFuncGetAttributes 模板template
cudaFuncGetAttributes return unexpected result How to pass the address of a template kernel function to a CUDA function? Directly casting from pointer to a template function? cudaFunc原创 2014-02-25 10:36:21 · 1191 阅读 · 0 评论 -
关于何时使用cudaDeviceSynchronize
When to call cudaDeviceSynchronize why do we need cudaDeviceSynchronize(); in kernels with device-printf? Although CUDA kernel launches are asynchronous, all GPU-related tasks placed in on原创 2014-02-25 11:29:42 · 10128 阅读 · 0 评论 -
OMP笔记(1)
Difference between static and dynamic schedule in openMP in C翻译 2014-06-01 10:58:00 · 1288 阅读 · 0 评论 -
error: for statement expected before ‘{’ token
https://computing.llnl.gov/tutorials/openMP/samples/C/omp_bug1fix.c原创 2014-06-01 10:58:45 · 4894 阅读 · 0 评论
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