[petsc-dev] Regression in PetIGA with petsc/master

[Lisandro Dalcin]

Dear Hong, any chance this is related to your work around commit
8b3fa1f7362a032c26473e2c80cb80f09a5a21c7

This test is working just fine with PETSc 3.5, 3.6, and 3.7, but fails
with petsc/master

$ git  clone https://github.com/dalcinl/petiga
$ cd petiga
$ make
$ cd test
$ make IGAInputOutput
$ mpiexec -n 4 valgrind -q ./IGAInputOutput -iga_dim 2
==26589== Invalid write of size 8
==26589==    at 0x5A7B8E7: ISGetSeqIS_SameColDist_Private (mpiaij.c:3026)
==26589==    by 0x5A7CFFF: MatCreateSubMatrix_MPIAIJ_SameRowColDist
(mpiaij.c:3130)
==26589==    by 0x5A7E1DC: MatCreateSubMatrix_MPIAIJ (mpiaij.c:3243)
==26589==    by 0x5B64553: MatCreateSubMatrix (matrix.c:7894)
==26589==    by 0x4E9A704: MatView_MPI_IGA (petigamat.c:75)
==26589==    by 0x5B19527: MatView (matrix.c:986)
==26589==    by 0x402F5D: main (IGAInputOutput.c:119)




-- 
Lisandro Dalcin
============
Research Scientist
Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
Extreme Computing Research Center (ECRC)
King Abdullah University of Science and Technology (KAUST)
http://ecrc.kaust.edu.sa/

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