gcc -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -Wl,-z,noexecstack -Wl,-z,noexecstack -Wl,-z,noexecstack -I/usr/include/mpich2 -L/usr/lib/mpich2 -L/usr/lib/mpich2 -Wl,-rpath,/usr/lib/mpich2 -lmpich -lopa -lpthread -lpthread -lrt