[Ankit.Dave]

Hi,

I came across following error in CFX, while executing transient run...

| Timestepping Information |
----------------------------------------------------------------------
| Timestep | RMS Courant Number | Max Courant Number |
+----------------------+----------------------+----------------------+
| 7.2500E-05 | 8.65 | 627.30 |
----------------------------------------------------------------------
Slave: 206
Slave: 206 +--------------------------------------------------------------------+
Slave: 206 | *** INSUFFICIENT MEMORY ALLOCATED *** |
Slave: 206 | |
Slave: 206 | ACTION REQUIRED : Increase the integer stack memory size. |
Slave: 206 | |
Slave: 206 | Details : |
Slave: 206 | Requested space : 8388608 words |
Slave: 206 | Current allocated space : 89194632 words |
Slave: 206 | Current used space : 87043100 words |
Slave: 206 | Current free space : 2151532 words |
Slave: 206 | Number of free areas : 3 |
Slave: 206 +--------------------------------------------------------------------+
Slave: 206
Slave: 206
Slave: 206 Details of error:-
Slave: 206 ----------------
Slave: 206 Error detected by routine MAKDAT
Slave: 206 CDANAM = CHILD CDTYPE = INTR ISIZE = 8388608
Slave: 206 CRESLT = FULL
Slave: 206
Slave: 206 Current Directory : /FLOW/MESH/TSTEP1/CLOOP0/ZIF9/SU_MESH_CS_GGI/SRF_FRAC

Parallel run: Received message from slave
-----------------------------------------
Slave partition : 206
Slave routine : ErrAction
Master location : Message Handler
Message label : 001100279
Message follows below - :

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine MEMERR |
| |
| |
| |
| |
| |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine MESG_RETRIEVE. |
| Message: |
| Stopping the run due to error(s) reported above |
| |
| |
| |
| |
| |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| The ANSYS CFX solver exited with return code 1. No results file |
| has been created. |
+--------------------------------------------------------------------+

End of solution stage.

+--------------------------------------------------------------------+
| The following transient and backup files written by the ANSYS CFX |
| solver have been saved in the directory |
| \\USMGV1HPCHEAD01\D\RAGU\GRINDERPUMP\0.5HP\ANSYS_U PDATED\20171218- |
| \AD\CFX_001: |
| |
| 0_full.trn |
+--------------------------------------------------------------------+


+--------------------------------------------------------------------+
| The following user files have been saved in the directory |
| \\USMGV1HPCHEAD01\D\RAGU\GRINDERPUMP\0.5HP\ANSYS_U PDATED\20171218- |
| \AD\CFX_001: |
| |
| pids, mon |
+--------------------------------------------------------------------+

STDOUT:
Slave: 206
Slave: 206 +--------------------------------------------------------------------+
Slave: 206 | *** INSUFFICIENT MEMORY ALLOCATED *** |
Slave: 206 | |
Slave: 206 | ACTION REQUIRED : Increase the integer stack memory size. |
Slave: 206 | |
Slave: 206 | Details : |
Slave: 206 | Requested space : 8388608 words |
Slave: 206 | Current allocated space : 89194632 words |
Slave: 206 | Current used space : 87043100 words |
Slave: 206 | Current free space : 2151532 words |
Slave: 206 | Number of free areas : 3 |
Slave: 206 +--------------------------------------------------------------------+
Slave: 206
Slave: 206
Slave: 206 Details of error:-
Slave: 206 ----------------
Slave: 206 Error detected by routine MAKDAT
Slave: 206 CDANAM = CHILD CDTYPE = INTR ISIZE = 8388608
Slave: 206 CRESLT = FULL
Slave: 206
Slave: 206 Current Directory : /FLOW/MESH/TSTEP1/CLOOP0/ZIF9/SU_MESH_CS_GGI/SRF_FRAC

job aborted:
[ranks] message

[0] application aborted
aborting MPI_COMM_WORLD (comm=0x44000000), error 1, comm rank 0

[1-255] terminated

---- error analysis -----

[0] on USMGV1HPC17
\\USMGV1HPCWKS01\ANSYS INC\V170\CFX\bin\winnt-amd64\solver-msmpi.exe aborted the job. abort code 1

---- error analysis -----
STDERR:
An error has occurred in cfx5solve:

The ANSYS CFX solver exited with return code 1. No results file has been
created.


+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| Indirect start method returned non-zero exit code |
+--------------------------------------------------------------------+


+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| Indirect solver job failed |
+--------------------------------------------------------------------+
I tried increasing integer memory override to 1.2x, but it still comes out with same error as mentioned above.

Is there anything else I am missing here? As I have read previous thread on this topic and CFX documentation as well. But didn't able to fix it.

[ghorrocks]

Try increasing the integer stack size further. If you have plenty of memory in your machine you might as well use it.

If this does not work then you have a problem with your simulation setup. These sort of issues can come up do to complex boundary conditions, complex GGI boundaries, complex expressions or large numbers of boundary conditions or other parameters.