Thanks Barry, You were right ! when i removed the COPTFLAGS and recompiled the same code worked. It now seems to be working perfectly.
So somehow the optimization flags effect the code execution !? is this a known issue ? thanks anyways, Vijay On Sat, May 23, 2015 at 9:04 PM, Barry Smith <[email protected]> wrote: > > This error message is almost always because a Nan or Inf has crept into > the numbers and then gotten into a norm or inner product. > You can run with -fp_trap or run a debugger and have it catch floating > point exceptions to see the first point where the Nan or Inf appeared and > help track down the cause. But do all this tracking down using a debug > version of the library without all the extra optimization flags you have > put into the COPTFLAGS flags etc. > > Barry > > > On May 23, 2015, at 12:27 PM, Vijay Gopal Chilkuri < > [email protected]> wrote: > > > > Hi, > > > > I'm having problems calculating large number of eigenvalues(nev>400) > with SLEPc, i get perfect results with small number of eigenvalues. > > > > > > PETSc: Branch: origin/maint ; commit: 2b04bc0 > > SLEPc: Branch: origin/maint ; commit: e1f03d9 > > > > This is the error message i get: > > > > Intel Parallel Studio XE 2013 loaded > > Intel(R) MPI Library 4.1 (4.1.3.049) loaded > > [0]PETSC ERROR: --------------------- Error Message > -------------------------------------------------------------- > > [0]PETSC ERROR: Invalid argument > > [0]PETSC ERROR: Scalar value must be same on all processes, argument # 3 > > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html > for trouble shooting. > > [0]PETSC ERROR: Petsc Release Version 3.5.3, unknown¬ > > [0]PETSC ERROR: ./ex1 on a arch-linux2-c-opt named eoscomp7 by vijayc > Sat May 23 19:04:55 2015 > > [0]PETSC ERROR: Configure options --with-64-bit-indices --with-cc=mpiicc > --with-fc=mpiifort --with-cxx=mpiicpc --with-debugging=1 --FOPTFLAGS="-O3 > -xAV > > X -fno-alias -no-prec-div -no-prec-sqrt -ip " --COPTFLAGS="-O3 -xAVX > -fno-alias -no-prec-div -no-prec-sqrt -ip " --CXXOPTFLAGS="-O3 -xAVX > -fno-alias -no-prec-div -no-prec-sqrt -ip " --download-fblaslapack > --with-x=false > > [0]PETSC ERROR: #1 BVScaleColumn() line 380 in > /eos1/p1517/vijayc/slepc_basic/src/sys/classes/bv/interface/bvops.c > > [0]PETSC ERROR: #2 EPSFullLanczos() line 200 in > /eos1/p1517/vijayc/slepc_basic/src/eps/impls/krylov/krylov.c > > [0]PETSC ERROR: #3 EPSSolve_KrylovSchur_Symm() line 56 in > /eos1/p1517/vijayc/slepc_basic/src/eps/impls/krylov/krylovschur/ks-symm.c > > [0]PETSC ERROR: #4 EPSSolve() line 99 in > /eos1/p1517/vijayc/slepc_basic/src/eps/interface/epssolve.c > > [0]PETSC ERROR: #5 main() line 143 in > /users/p1517/vijayc/modelization/ntrou3/sites_18/obc_10/isz_0/ex1.c > > [0]PETSC ERROR: ----------------End of Error Message -------send entire > error message to [email protected] > > application called MPI_Abort(MPI_COMM_WORLD, 62) - process 0 > > > > thanks a lot, > > Vijay > >
