[Trilinos-Users] scalability tests with aztec file example

[Lucie Freret]

Hello all,

I am a new user of this list and maybe my question has already been  
addressed - sorry if it is the case.

I am using the file example cxx_main.cpp located at  
trilinos-11.4.2-Source/packages/aztecoo/example/simple_epetra_aztecoo  
to realize some scalability tests.

 From this file, I changed the number of equations (default  
value=1000) to get a global matrix size equal to 500,000 (half a  
million). According to the number of cores, I'm changing the number of  
equations per core to keep the global matrix size constant. The  
speed-up that I get is quite bad - see the file below.

Does anyone have already looked at this example or done scalability  
tests with Aztecoo?

Thanks for your help,
Best regards,
Lucie Freret

----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: aztecoo_example.png
Type: image/png
Size: 48306 bytes
Desc: not available
URL: <http://software.sandia.gov/pipermail/trilinos-users/attachments/20140328/a6b0724f/attachment.png>