PC GAMESS-related discussion club

Tae-Yun Park
taeyun0000@gmail.com

I'm trying to run a set of 4 jobs on an AMD Phenom 9500 quadcore machine simultaneously under a Linux OS(CentOS5.1). No problem on running a single job, but when 4 jobs are running background on a simultaneous basis, I¡¯ve got the following error:

p0_11832: p4_error: OOPS: semop lock failed: -1

More serious problem is, the 4 running jobs do not always produce the corresponding output files. I guess the calculation was done fine, but for some reason, it is not written on the HD. This problem only happens when I tried to run 4 jobs at the same time.

Any suggestion?

Many thanks in advance.

Tae-Yun Park