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shell$ which cc
/usr/bin/cc
shell$  which gcc
/usr/local/bin/gcc
shell$  which c++
/usr/local/bin/c++
shell$  which ifort
/opt/intel/composer_xe_2011_sp1.8.273/bin/intel64/ifort

2¡¢×¼±¸°²×°Îļþ
°Ñopenmpi-1.6.5.tar.gzÉÏ´«ÐèÒªµÄ°²×°µÄĿ¼£¬²¢½âѹ¡£
shell$ tar -xvzf openmpi-1.6.5.tar.gz
3¡¢ÔÚʹÓÃÓû§ÃûϽ¨Òé°²×°openmpiµÄĿ¼£¬ÕâÀïÓãº/home/usr/mpi
ÔÚµ±Ç°Ä¿Â¼ÏÂ
shell$ mkdir mpi
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½øÈëopenmpiµÄÎļþĿ¼
shell$ ./configure --prefix=/home/usr/mpi CC=gcc CXX=c++ F77=ifort FC=ifort

--prefixÓÃÀ´Ö¸¶¨°²×°Ä¿Â¼
CC=gcc CXX=c++ F77=ifort FC=ifort  Ö¸¶¨±àÒëÆ÷
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shell$ make all
shell$  make install
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6¡¢É趨ִÐз¾¶ºÍÊý¾Ý¿â·¾¶
ÔÚÓû§Ä¿Â¼ÏµÄ.bashrcÎļþÖÐÌí¼Ó
export PATH=/home/teachera211/mpi/bin:$PATH
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/teachera211/mpi/lib
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shell$ source .bashrc
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shell$ which mpicc
~/mpi/bin/mpicc
shell$ which mpic++
~/mpi/bin/mpic++
shell$ which  mpif77
~/mpi/bin/mpif77
shell$ which  mpif90
~/mpi/bin/mpif90
8¡¢²âÊÔ
½øÈëexampleĿ¼£¬±àÒëÒ»¸öÎļþ
shell$ mpicc mpicc -g    hello_c.c   -o hello_c

shell$ ./helle_c
Hello, world, I am 0 of 1

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shell$ mpirun -np 4 helle_c
Hello, world, I am 1 of 4
Hello, world, I am 0 of 4
Hello, world, I am 2 of 4
Hello, world, I am 3 of 4
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