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-   -   AMG troubles - help? (http://www.cfd-online.com/Forums/cd-adapco/56283-amg-troubles-help.html)

Stephanie September 21, 2007 03:37

AMG troubles - help?
 
I started a parallel calculation with AMG. After 60 iterations the job is killed. Error message is following:

Process 1 amg_error: amg_trunc : error (1) occurred ierr_amg= 2981 Please contact CD-adapco support. STAR MPI_ABORT executed from processor 1

For an another mesh (same geometry ans settings) the job run until convergence.

What is the problem?

Thanks for your help.

Donald September 22, 2007 14:03

Re: AMG troubles - help?
 
try CG algorithm. If it works, it means the AMG solver diverges.


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