[petsc-users] Problem with MPI_Allreduce

[Praveen C]

> On 18-Sep-2018, at 8:19 PM, Balay, Satish <balay at mcs.anl.gov> wrote:
> 
> This warning will go away if you change the code to:
> 
> ierr = MPI_Allreduce(&lamx, &lambdax, 1, MPI_DOUBLE, MPI_MAX, PETSC_COMM_WORLD);CHKERRQ(ierr);
> 
> And its best to run code in gdb or valgrind to track down the crash.
> 
> Satish

Thank you, this fixed the warnings. There was some other bug in my code.

Best
praveen
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