<div dir="ltr"><div>I am using putty so I could only give you screenshots.</div><div>The attachments are full output.</div>The output<div><img src="cid:ii_1478619f586890e8" alt="内嵌图片 1" width="454" height="326"><br></div></div>
<div class="gmail_extra"><br><br><div class="gmail_quote">2014-07-30 16:44 GMT+10:00 Jed Brown <span dir="ltr"><<a href="mailto:jed@jedbrown.org" target="_blank">jed@jedbrown.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="">张国熙 <<a href="mailto:altriaex86@gmail.com">altriaex86@gmail.com</a>> writes:<br>
<br>
> Do you mean compling and running the file "noname" attached?<br>
> Is it a source code? After opened it I only see the following.<br>
><br>
</div>> *-----BEGIN PGP SIGNATURE-----*<br>
<br>
It isn't called "noname", it is a PGP/MIME signature<br>
(application/pgp-signature) and your mail client refuses to recognize a<br>
15-year old standard and instead writes "noname". Just ignore my<br>
signatures and do what I suggested, then reply-all (do not drop<br>
petsc-users).<br>
<br>
> *Version: GnuPG v2*<br>
><br>
> *iQIcBAEBAgAGBQJT2JCbAAoJEM+2iNHeMalNOhQQAJ9xVEBPCJhEB3PkVhCwNg/e*<br>
> *djetm4dAcWoRtv262lGU+yoe1W88WVNQBrHyJCXn7SBZ7sYvUM7lUgDxbBhWIILj*<br>
> *CwasnKDj2/r/TjmNmxwaP/xtKAJya6lfzKCQr6wymOQRCikGGCKZxNz+XfD5HI7j*<br>
> *wF9kjfUI/oDTm7beBi21z+GXaDHx0uq9rIIrn2kG2Bkv2OFYbAa/YKi6SuPxF7aa*<br>
> *kxbEchusp9WPChBqlmB6e+E991YwvUPQuaeXdN9do1YLuk9SPZYVmVbj7fdBrkB6*<br>
> *tfgoJIQW80mOCJFu13HqA22MzaQikaztW4B8zRguL1YIDhKmu+moi8gvlbkH+HjZ*<br>
> *L+PuIIKaozlkiHSy7KzhHpP8m6JuJqNoI7nkMwd2Ye4AF9xUFBiuzf426xafroF0*<br>
> *cLXLR1AMFXpRy4fRwZpiFdiyu4ats6jPOQ2WsJhS147WldShG+dMgo6acWaWq30v*<br>
> *RPqyWJV478cjZ8ZFsf6hdHoiMjfqPDxi4XF+b0+OeY+gM8CG+1h9HYpo6E+ALo1Q*<br>
> *IVKLI5cLfvshACrCPY1vnehDYSJMCPD91X+zlfjm/wrWb4Ci+RH+WGovIW0Smb72*<br>
> *NaGu1EDqZnUIFbjQA8wX1/E31uwVmr18Z2OJnqaWaas4Fnc53aro02Lya2Xn7/yf*<br>
> */kBlARwztc6/U6oUHFf+*<br>
> *=qGvR*<br>
> *-----END PGP SIGNATURE-----*<br>
<div class="HOEnZb"><div class="h5">><br>
><br>
> 2014-07-30 16:28 GMT+10:00 Jed Brown <<a href="mailto:jed@jedbrown.org">jed@jedbrown.org</a>>:<br>
><br>
>> 张国熙 <<a href="mailto:altriaex86@gmail.com">altriaex86@gmail.com</a>> writes:<br>
>><br>
>> > Hi,all<br>
>> ><br>
>> > Recently I am using SLEPc to solve an sparse eigenvalue problem. I use<br>
>> > krylov-shur and mumps as solvers.<br>
>> ><br>
>> > My codes work well my corei5 dual core laptop. Compared to my old<br>
>> > sequential solution ARPACK/UMFPACK, running with 2 process could give me<br>
>> > 1.3x speedup. However when I install my code on another station with quad<br>
>> > core CPU, the performance change significantly. My parallel code runs 2-3<br>
>> > times slower than sequential code.<br>
>><br>
>> Run "make streams NPMAX=4" and send the output.<br>
>><br>
</div></div></blockquote></div><br></div>