allocating more scratch space

[omidomidi]

i saved one of my analyses which was so huge in size, then when i wanted to resume it once again the following error ocurred and after that ansys crashed and exited.
"
*** FATAL *** CP = 2.109 TIME= 12:37:51
This model requires more scratch space than available. ANSYS has currently allocated 256 MB and was not able to allocate enough additional memory in order to proceed. Please increase the virtual memory on your system and/or increase the work space memory and rerun
ANSYS. Problem terminated.
"
i tried to change the workspace space and database space in ansys product launcher but the error didn't disappear.
can anyone help me on this problem?

 

[cbrn]

Ah, it happened once to me also...
But I think we'd need to know if you are using classic or WB ambient.
In Classic, perhaps you have saved "everything" in the db file, I mean both FE data AND solution data. In this case, even if the problem fitted into memory during solving, it could not when you reopen it.
Workaround: open Classic and don't load anything, go to the post-processing and issue the 'read single results file' command from the "Data and File Options". Then "Read Results" from the step / substep you need.
Ansys will prompt you a warning message saying it misses the original FE data in some way, but you already know that, and the program will continue undisturbed.
Only, you know that any information related to the model (named selections, "components", volumes, areas, etc...) are not available.
Hope it helps...
Also remember: when allocating memory, Ansys needs this memory block to be CONTIGUOUS, so if the OS is placing its own services in a "non-compact" way, Ansys will "see" much less memory than what is "physically" available. Hence, you can first of all try to stop any unneeded service or program (not simply stop, rather remove from the start list during OS's startup, for example changing from "automatic" to "manual" or even "disabled"). Logout and re-logon.
Make sure that the Ansys operation is the very first you do right after the OS has finished starting up.

Regards

 

[omidomidi]

thanks cbrn for your help
i need to resume my saved file and apply some changes into it.i don't want just to see the results but to use the saved mesh and geometry in my other models.what can i do for that?if i obtain more contagious space will it solve the problem?