Ansys Learning Forum Forums Discuss Simulation General Mechanical Not able to find the actual problem Reply To: Not able to find the actual problem

peteroznewman
Subscriber

Shobhit,


I don't know why the solver is trying to run incore on a 24 GB memory machine when it calculated it needs 31 GB for incore.


DISTRIBUTED SPARSE MATRIX DIRECT SOLVER.
  Number of equations =      752990,    Maximum wavefront =   4314

  Local memory allocated for solver              =   6804.421 MB
  Local memory required for in-core solution     =   6196.708 MB
  Local memory required for out-of-core solution =    751.710 MB

  Total memory allocated for solver              =  34117.895 MB
  Total memory required for in-core solution     =  31117.943 MB
  Total memory required for out-of-core solution =   4888.666 MB

 *** NOTE ***                            CP =      18.750   TIME= 22:12:1
 The Distributed Sparse Matrix Solver is currently running in the       
 in-core memory mode.  This memory mode uses the most amount of memory  
 in order to avoid using the hard drive as much as possible, which most 
 often results in the fastest solution time.  This mode is recommended  
 if enough physical memory is present to accommodate all of the solver  
 data.                                                                    

Insert a command object to force it to run outofcore, pay attention to the double comma!


DSPOPTION,,outofcore



DISTRIBUTED SPARSE MATRIX DIRECT SOLVER.
  Number of equations =      752990,    Maximum wavefront =   4314

  Local memory allocated for solver              =   1843.666 MB
  Local memory required for in-core solution     =   5289.458 MB
  Local memory required for out-of-core solution =   1631.345 MB

  Total memory allocated for solver              =  10534.168 MB
  Total memory required for in-core solution     =  36135.412 MB
  Total memory required for out-of-core solution =   9367.275 MB

 *** WARNING ***                         CP =      43.805   TIME= 14:52:24
 The Distributed Sparse Matrix Solver is currently running in the       
 out-of-core memory mode.  This memory mode may provide significantly   
 worse performance compared to the in-core memory mode, depending on    
 the amount of available system memory and I/O speed.  Please monitor   
 the solver performance to ensure that the large amount of I/O to the   
 solver files does not create a bottleneck for performance.             Â