Running 2 CFD jobs on one PC

steve podleski

I have a Polywell with two PIII 500Mz cpus with almost 1GB of RAM with the Windows NT4 Worstation OS.

I have been running a Fortran code (NPARC3D...a computational fluid dynamics code) successfully for a few months on this system.

Recently, I have been trying to run two jobs simultaneously from separate directories. The first job runs without any problems but when I try running a second job, I get the following error:

forrtl: severe (22): input record too long, unit 2.

Unit 2 reads the fort.2 file which is the initial flow solution and grid. This is the same fort.2 file that has been read by the first job. I've checked all the input files and found no errors. As a final check, I copied all the files from the first job into another directory and tried to run the second job with those files as input. I still get the same error!

The Fortran code generates temporary files which are stored on the system Temp directory. I'm thought that the two jobs may conflict if they use the same Temp directory so I tried to redirect the temp files from the 2nd job to another location but no luck (I used the enviroment variable TEMP to do this).

Any ideas as to what is happening? I have tried running several jobs in the past on Unix machines with no problems but have little experience with Windows NT.