[Pw_forum] serial algorithm in parallel phonon calculation
Eduardo Ariel Menendez P
emenendez at macul.ciencias.uchile.cl
Wed Aug 23 18:32:24 CEST 2006
Hi,
Looking at the ph.x output, when running in parallel with four CPUs
(-npool 1) I found the following intriguing report
***********************
Calculation of q = 0.2500 0.2500 -0.2500
looking for the optimal diagonalization algorithm ...
a serial algorithm will be used
***********************
Is it important or is there a parallel algorithm? I also see that top
reports
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
11020 eduardo 16 0 107m 20m 50m R 63.9 1.0 32:49.09 ph.x
11019 eduardo 16 0 107m 20m 50m S 21.6 1.0 11:22.56 ph.x
and the same in the other dual node. Is it related to the algorithm?
Thanks
Eduardo
Eduardo A. Menendez Proupin
Department of Physics
Faculty of Science
University of Chile
Las Palmeras 3425
Ñuñoa, Santiago
Chile
Phone: 56+2+978 74 11
http://fisica.ciencias.uchile.cl/~emenendez/
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