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Old   October 29, 2014, 12:48
Default real stack memory problem
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Sharon Wilcox
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does anyone know how to get rid of this error in CFX? I am using 1.4 memory allowcation factor but still showing this error.

| |
| ACTION REQUIRED : Increase the real stack memory size. |
| |
| Details : |
| Requested space : 2785716 words |
| Current allocated space : 48516696 words |
| Current used space : 47089570 words |
| Current free space : 1427126 words |
| Number of free areas : 3
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Old   October 29, 2014, 18:27
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Glenn Horrocks
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If you increase the allocation factor but still get the error then you have a fundamental error in your setup. Something is causing the problem - examples include excessively complex GGI interfaces, file names too long, too many boundary surfaces, too many phases, and zillions more causes.
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Old   October 30, 2014, 08:49
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You must try to understand the message to see if you are making progress by allocating additional memory.

It says:

| Requested space : 2785716 words |
| Current free space : 1427126 words |
| Number of free areas : 3
Therefore, it tried to use 2785716, but it only has 1427126 available, i.e. it is off by about 50% in available memory. In addition, it says that the available memory is divided in 3 free areas; therefore, even if the Current free space was large enough, there may not be a single free area large enough for the request.

Try a larger memory factor, and see how the message guides you. If you see no progress, or unrealistic request review your setup carefully, or contact ANSYS CFX support.
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