cd src/benchmarks/streams; /usr/bin/gmake  --no-print-directory PETSC_DIR=/ffs/u/u06189/petsc-3.6.1 PETSC_ARCH=arch-linux2-c-opt streams
/ffs/u/u06189/petsc-3.6.1/arch-linux2-c-opt/bin/mpicc -o MPIVersion.o -c -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -O   -I/ffs/u/u06189/petsc-3.6.1/include -I/ffs/u/u06189/petsc-3.6.1/arch-linux2-c-opt/include    `pwd`/MPIVersion.c
Number of MPI processes 1 Processor names  g03 
Triad:         4567.7147   Rate (MB/s) 
Number of MPI processes 2 Processor names  g03 g05 
Triad:         8926.3510   Rate (MB/s) 
Number of MPI processes 3 Processor names  g03 g05 g06 
Triad:        13295.0594   Rate (MB/s) 
------------------------------------------------
np  speedup
1 1.0
2 1.95
3 2.91
Estimation of possible speedup of MPI programs based on Streams benchmark.
It appears you have 3 node(s)
Unable to open matplotlib to plot speedup
Unable to open matplotlib to plot speedup