Error: MALLOC Failed in Fluent
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Comments: A user gets a message similar to the following when attempting to allocate memory for a large problem, because the user resource limits are set too low:
(MEMORY ALLOCATION) (*)- ALLOCATING MEMORY, PLEASE WAIT (*)- ERROR: MALLOC FAILED (*)- THERE IS NOT ENOUGH MEMORY AVAILABLE TO ENABLE BASIC (*)- FLUID FLOW AND HEAT TRANSFER CALCULATIONS. Resolution: In the C-shell, check the resource limits with the command: limit You get a display similar to: cputime unlimited filesize unlimited datasize 131072 kbytes stacksize 2048 kbytes coredumpsize unlimited memoryuse 123440 kbytes descriptors 4096 files addressspace 1048576 kbytes This is not enough for a 150,000 cell problem. You can increase these limits (to a certain extent) with the command: unlimit Issue the the limit command again to show the new limits: cputime unlimited filesize unlimited datasize 1048576 kbytes stacksize 32768 kbytes coredumpsize unlimited memoryuse 123360 kbytes descriptors 4096 files addressspace 1048576 kbytes In this case, you should now be able to allocate enough memory for a 1 GB problem. |
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