g++ -O -Wall -c  -I. -I./ -I/usr/lib64/openmpi/1.4-gcc/include -I/home/arg/lib/libscl/gpp .//hello.cpp
g++ -o hello hello.o -L/usr/lib64/openmpi/1.4-gcc/lib -L/home/arg/lib/libscl/gpp -lmpi -lmpi_cxx -lscl -lm
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