Re: [Help-glpk] csv_driver:unable to create ....csv - Permission denied

[Michael Hennebry]

On Tue, 6 Jan 2015, Martin Albrecht wrote:

> I am running a GLPK model that is sequentially started from a frame program 
> in Java.

In this contex, what is a frame program?
What OS are you running?

> Unfortunately,  I get sometime error when opening the .csv files.
> Here is an example:
> /
> csv_driver: unable to open BOM.csv - Permission denied
> allocation.mod:113: error on opening table tab_BOM
> glp_mpl_build_prob: invalid call sequence
> Error detected in file ..\src\glpapi14.c at line 93/
>
> I do not get this error at each call of the Java model (one error after 
> approx. 50 calls). Moreover, these errors do not occur in a deterministic 
> manner, they cannot be reproduced. I each run of the Java program they occur 
> at another place.

Looks like a thread issue to me.
Do the open and close occur in different threads?
Perhaps the open is attempted before the close has gone through.

--
Michael   address@hidden
"SCSI is NOT magic. There are *fundamental technical
reasons* why it is necessary to sacrifice a young
goat to your SCSI chain now and then."   --   John Woods