ScaLAPACK Archives

[Scalapack] question

Hi, I'm using the example scaex.f in order to solve Ax=b. Actually, I 
implemented the program so I can use the A&b that I'm interested in.

Question: could I get some advice as to how chose the 'memory' parameters 
in scaex.f so I can do big A's?

So far, I've been able to do A's of N=22,048. When I go above this, the 
program doesn't run. For instance, the message for N=25,536 is:

"Unable to perform test: need TOTMEM of at least         -1685545584 "

I'm running on a Xeon-Quad cluster with 2GB of ram on each node. 

Thanks for your help


Dr. Bernardo Mendoza                    | email:
Centro de Investigaciones en Optica     | bms@Domain.Removed
Loma del Bosque 115                     | 
Leon, 37150, GTO                        | 
MEXICO                                  |
fax: (+52-477) 441-4209                 |    __ o_
tel: (+52-477) 441-4200                 |   _`\  `_
                                        |__(*)/  (*)__

Este mensaje ha sido analizado por MailScanner
en busca de virus y otros contenidos peligrosos,
y se considera que est? limpio.
MailScanner agradece a transtec Computers por su apoyo.

<Prev in Thread] Current Thread [Next in Thread>

For additional information you may use the LAPACK/ScaLAPACK Forum.
Or one of the mailing lists, or