Thank's for the info, I think the problem is that in 'my' (finnish taxpayers) system cat $PBS_NODEFILE gives only a single line and a single node name. Also other $PBS related variables did not contain this info. So I try to figure out how in Portable Batch System, Professional Edition (PBS Pro) the true node names are obtained.
>PS: was the test on login6 a 12 core machine ? It was either 4 or 8 core node, which I did not know, because I did not select either one. But the size of the nodes can be selected by PBS pro, so this is not a problem. Terveisin, Markus -- --www=http://www.iki.fi/markus.kaukonen --Markus.Kaukonen at iki.fi --office: N102 Nano building FIN-02015 TKK --home: Viinirinne 3 F 12, 02630 Espoo, FIN --tel: h 045-1242068, w 4518694, 050-5112785 --Rikos ei kannata, eika maatalous --Suomessa. (Paimio 1998) ---