Dear Marcos,
Thanks for your suggestions.
Changing optimization from O3 to O2 didn't help but the problem, as you
suggested, is probably in mpi or libraries. At the momemnt I can run
parallel siesta to the point where the memory is checked. Then it crashes.
Here is a part of out file:
InitMesh: Mesh cutoff (required, used) = 225.000 244.755 Ry
p0_5146: (60.036989) xx_shmalloc: returning NULL; requested 4976688 bytes
p0_5146: (60.036989) p4_shmalloc returning NULL; request = 4976688 bytes
You can increase the amount of memory by setting the environment variable
P4_GLOBMEMSIZE (in bytes); the current size is 4194304
p0_5146: p4_error: alloc_p4_msg failed: 0
It is quite wired.
All the best,
Mariusz.
----------------------------------------------------------------------
Dr Mariusz Krawiec
Institute of Physics Phone: +48 81 537 6146
M Curie-Sklodowska University Fax: +48 81 537 6191
pl. M. Curie-Sklodowskiej 1 E-mail: [EMAIL PROTECTED]
20-031 Lublin, Poland http://www.fnano.umcs.lublin.pl
---- ----
If you think of MS-DOS as mono, and Windows as stereo, then Linux is
Dolby Pro-Logic Surround Sound with Bass Boost and all the music is
free. - unknown
---- ----
On Wed, 30 May 2007, Marcos Verissimo Alves wrote:
Hi Mariusz,
I would use O2 optimization instead of O3. O3 does not always yield
improvements in performance, and can in some cases lead to numerical
errors. However, from your error messages, I would guess the error could
lie not in siesta, but in the mpi compilation - that is, if mpi is
compiled from scratch. Just a wild guess.
Cheers,
Marcos
Dear Siesta users,
Happy to join the list.
I have a problem with running Siesta in parallel mode on IA64 cluster.
The compilation was sucessful, albeit with some warnings:
fortcom: Warning: Optimization suppressed due to excessive resource
requirements; contact Intel Premier Support
in file siesta.F, line 11, column 0
At the end I got executable file.
For compilation (following arch.make file distributed with Siesta) I used:
ifort -Vaxlib -c -O3 -tpp2 -W0 -DMPI -DNODAT -DWXML_INIT_FIX
-DHAS_DLAMC3 -DALLOC_SAVE_BUG
When I try to run it on 2 processors (mpirun -np 2) the program stops and
I get a message:
rm_5015: p4_error: semget failed for setnum: 0
p0_16457: (0.200573) net_recv failed for fd = 5
p0_16457: p4_error: net_recv read, errno = : 104
When I run on one processor only (mpirun -np 1) everything is ok.
Note that siesta is compiled to run in parallel mode.
Thanks for any suggestions.
Mariusz.
----------------------------------------------------------------------
Dr Mariusz Krawiec
Institute of Physics Phone: +48 81 537 6146
M Curie-Sklodowska University Fax: +48 81 537 6191
pl. M. Curie-Sklodowskiej 1 E-mail: [EMAIL PROTECTED]
20-031 Lublin, Poland http://www.fnano.umcs.lublin.pl
---- ----
If you think of MS-DOS as mono, and Windows as stereo, then Linux is
Dolby Pro-Logic Surround Sound with Bass Boost and all the music is
free. - unknown
---- ----
--
Dr. Marcos Verissimo Alves
Post-Doctoral Fellow
Condensed Matter and Statistical Physics Sector
International Centre for Theoretical Physics
Trieste, Italy
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I have become so addicted to vi that I try to exit OpenOffice by typing :wq!
