weifengliu-ssslab
commented
4 years ago Thanks for the message! We'll have a look at this!
Weifeng Liu weifeng.liu@cup.edu.cn
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On 10/20/2020 16:03，Phreenotifications@github.com wrote：
Hi, thanks for your awesome work and I am very interested in the CSR5 format. But when I tested the code (AVX2 version) in this repository, the program complained that the result is incorrect. I tested the code with webbase-1M.mtx and some other matrices downloaded from SuiteSparse Matrix Collection. This is the output:
PRECISION = 64-bit Double Precision
--------------../webbase-1M/webbase-1M.mtx-------------- ( 1000005, 1000005 ) nnz = 3105536 cpu sequential time = 10.758 ms. Bandwidth = 6.8889 GB/s. GFlops = 0.577344 GFlops.
omega = 4, sigma = 16. #partition = 48524 CSR->CSR5 malloc time = 4.077000 ms CSR->CSR5 tile_ptr time = 29.580000 ms CSR->CSR5 tile_desc time = 9.116000 ms CSR->CSR5 transpose time = 5.595000 ms omega = 4, sigma = 16. #partition = 48524 CSR->CSR5 malloc time = 0.144000 ms CSR->CSR5 tile_ptr time = 1.335000 ms CSR->CSR5 tile_desc time = 4.970000 ms CSR->CSR5 transpose time = 3.740000 ms omega = 4, sigma = 16. #partition = 48524 CSR->CSR5 malloc time = 0.126000 ms CSR->CSR5 tile_ptr time = 1.243000 ms CSR->CSR5 tile_desc time = 4.799000 ms CSR->CSR5 transpose time = 3.132000 ms omega = 4, sigma = 16. #partition = 48524 CSR->CSR5 malloc time = 0.122000 ms CSR->CSR5 tile_ptr time = 1.229000 ms CSR->CSR5 tile_desc time = 4.324000 ms CSR->CSR5 transpose time = 3.812000 ms omega = 4, sigma = 16. #partition = 48524 CSR->CSR5 malloc time = 0.109000 ms CSR->CSR5 tile_ptr time = 1.020000 ms CSR->CSR5 tile_desc time = 4.126000 ms CSR->CSR5 transpose time = 2.930000 ms omega = 4, sigma = 16. #partition = 48524 CSR->CSR5 malloc time = 0.107000 ms CSR->CSR5 tile_ptr time = 0.926000 ms CSR->CSR5 tile_desc time = 3.673000 ms CSR->CSR5 transpose time = 3.280000 ms CSR->CSR5 time = 8.053 ms. CSR5-based SpMV time = 1.08296 ms. Bandwidth = 68.4337 GB/s. GFlops = 5.73529 GFlops. Check... NO PASS! #Error = 3701 out of 1000005 entries.
The platform where I ran the code is a CentOS7 server with Intel Xeon E5-2680 v4, and the program was built icc (ICC) 19.1.2.254 20200623 (shipped with Intel System Studio 2020 Update 2. I am wondering that whether it is caused by the compiler. Hope to get some hints. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.
phreer
Hi, thanks for your awesome work and I am very interested in the CSR5 format.
But when I tested the code (AVX2 version) in this repository, the program complained that the result is incorrect. I tested the code with webbase-1M.mtx and some other matrices downloaded from SuiteSparse Matrix Collection. This is the output:
The platform where I ran the code is a CentOS7 server with Intel Xeon E5-2680 v4, and the program was built icc (ICC) 19.1.2.254 20200623 (shipped with Intel System Studio 2020 Update 2. I am wondering that whether it is caused by the compiler.
Hope to get some hints.