When this example program is executed on a Sun Solaris architecture using
MPICH (version 1.0.13) and the MPI BLACS, the following
output
is received:
sun4sol2> f77 -o example1 example1.f scalapack_SUN4SOL2.a \
blacsF77init_MPI-SUN4SOL2-0.a blacs_MPI-SUN4SOL2-0.a \
blacsF77init_MPI-SUN4SOL2-0.a blas_SUN4SOL2.a \
$MPI_ROOT/lib/solaris/ch_p4/libmpi.a -lnsl -lsocket
example1.f:
MAIN example1:
matinit:
sun4sol2> mpirun -np 6 example1
ScaLAPACK Example Program #1 -- May 1, 1997
Solving Ax=b where A is a 9 by 9 matrix with a block size of 2
Running on 6 processes, where the process grid is 2 by 3
INFO code returned by PDGESV = 0
According to the normalized residual the solution is correct.
||A*x - b|| / ( ||x||*||A||*eps*N ) = 0.00000000E+00