And here is the lscpu output [image: 内嵌图片 1]
2014-07-30 17:10 GMT+10:00 张国熙 <[email protected]>: > I am using putty so I could only give you screenshots. > The attachments are full output. > The output > [image: 内嵌图片 1] > > > 2014-07-30 16:44 GMT+10:00 Jed Brown <[email protected]>: > > 张国熙 <[email protected]> writes: >> >> > Do you mean compling and running the file "noname" attached? >> > Is it a source code? After opened it I only see the following. >> > >> > *-----BEGIN PGP SIGNATURE-----* >> >> It isn't called "noname", it is a PGP/MIME signature >> (application/pgp-signature) and your mail client refuses to recognize a >> 15-year old standard and instead writes "noname". Just ignore my >> signatures and do what I suggested, then reply-all (do not drop >> petsc-users). >> >> > *Version: GnuPG v2* >> > >> > *iQIcBAEBAgAGBQJT2JCbAAoJEM+2iNHeMalNOhQQAJ9xVEBPCJhEB3PkVhCwNg/e* >> > *djetm4dAcWoRtv262lGU+yoe1W88WVNQBrHyJCXn7SBZ7sYvUM7lUgDxbBhWIILj* >> > *CwasnKDj2/r/TjmNmxwaP/xtKAJya6lfzKCQr6wymOQRCikGGCKZxNz+XfD5HI7j* >> > *wF9kjfUI/oDTm7beBi21z+GXaDHx0uq9rIIrn2kG2Bkv2OFYbAa/YKi6SuPxF7aa* >> > *kxbEchusp9WPChBqlmB6e+E991YwvUPQuaeXdN9do1YLuk9SPZYVmVbj7fdBrkB6* >> > *tfgoJIQW80mOCJFu13HqA22MzaQikaztW4B8zRguL1YIDhKmu+moi8gvlbkH+HjZ* >> > *L+PuIIKaozlkiHSy7KzhHpP8m6JuJqNoI7nkMwd2Ye4AF9xUFBiuzf426xafroF0* >> > *cLXLR1AMFXpRy4fRwZpiFdiyu4ats6jPOQ2WsJhS147WldShG+dMgo6acWaWq30v* >> > *RPqyWJV478cjZ8ZFsf6hdHoiMjfqPDxi4XF+b0+OeY+gM8CG+1h9HYpo6E+ALo1Q* >> > *IVKLI5cLfvshACrCPY1vnehDYSJMCPD91X+zlfjm/wrWb4Ci+RH+WGovIW0Smb72* >> > *NaGu1EDqZnUIFbjQA8wX1/E31uwVmr18Z2OJnqaWaas4Fnc53aro02Lya2Xn7/yf* >> > */kBlARwztc6/U6oUHFf+* >> > *=qGvR* >> > *-----END PGP SIGNATURE-----* >> > >> > >> > 2014-07-30 16:28 GMT+10:00 Jed Brown <[email protected]>: >> > >> >> 张国熙 <[email protected]> writes: >> >> >> >> > Hi,all >> >> > >> >> > Recently I am using SLEPc to solve an sparse eigenvalue problem. I >> use >> >> > krylov-shur and mumps as solvers. >> >> > >> >> > My codes work well my corei5 dual core laptop. Compared to my old >> >> > sequential solution ARPACK/UMFPACK, running with 2 process could >> give me >> >> > 1.3x speedup. However when I install my code on another station with >> quad >> >> > core CPU, the performance change significantly. My parallel code >> runs 2-3 >> >> > times slower than sequential code. >> >> >> >> Run "make streams NPMAX=4" and send the output. >> >> >> > >
