爲了做課設,不得不安裝個mpich,找了好久方法。下面簡單介紹下安裝方法
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yum安裝,這是比較簡單的安裝方式
注意:先要配置好yum的網絡源安裝epel-release擴展源,我試了下本地的貌似沒安裝成功[root@c1 yum.repos.d]# yum -y install mpich-3.2-devel.x86_64 mpich-3.2-devel.x86_64 mpich-3.2-doc.noarch 安裝好之後是找不到命令的,需要手動配置環境變量 [root@c1 yum.repos.d]# find / -name "mpicc" /usr/lib64/mpich-3.2/bin/mpicc 先搜索一下安裝路徑 設置環境變量: 在 /etc/profile添加一下內容: PATH=$PATH://usr/lib64/mpich-3.2/bin/ 刷新一下: source /etc/profile 命令就可直接使用了 新建一個文件test.c [root@host ~]# cat test.c #include <mpi.h> #include <stdio.h> #include <math.h> int main(int argc,char* argv[]) { int myid, numprocs; int namelen; char processor_name[MPI_MAX_PROCESSOR_NAME]; MPI_Init(&argc,&argv);/* 初始化並行環境 */ MPI_Comm_rank(MPI_COMM_WORLD,&myid);/* 當前進程的ID號 */ MPI_Comm_size(MPI_COMM_WORLD,&numprocs);/* 進程的總數 */ MPI_Get_processor_name(processor_name,&namelen);/* 當前處理器的名稱 */ fprintf(stderr,"Hello World! Process %d of %d on %s\n", myid, numprocs, processor_name); MPI_Finalize();/* 結束並行環境 */ return 0; } [root@c1 ~]# mpicc -o hello test.c [root@c1 ~]# mpirun -np 4 ./hello Fatal error in MPI_Init: Other MPI error, error stack: MPIR_Init_thread(474)..............: MPID_Init(190).....................: channel initialization failed MPIDI_CH3_Init(89).................: MPID_nem_init(320).................: MPID_nem_tcp_init(173).............: MPID_nem_tcp_get_business_card(420): MPID_nem_tcp_init(379).............: gethostbyname failed, c1 (errno 1) 但是這裏運行還是會報錯,原因在於,沒有配置好域名解析: 需要配置域名解析 在/etsc/hosts中與/etc/hostname中的名字需要一致,貼出我的配置 [root@host ~]# cat /etc/hosts 127.0.0.1 host ::1 localhost [root@host ~]# cat /etc/hostname host 可以通過ssh 連接host 如果連接成功說明配置成功 接下來就可運行了 [root@host ~]# mpirun -np 4 ./hello Hello World! Process 0 of 4 on host Hello World! Process 2 of 4 on host Hello World! Process 1 of 4 on host Hello World! Process 3 of 4 on host
2. 源碼安裝mpich
[root@c1 ~]# wget http://www.mpich.org/static/downloads/3.2/mpich-3.2.tar.gz
--2018-05-28 18:06:45-- http://www.mpich.org/static/downloads/3.2/mpich-3.2.tar.gz
正在解析主機 www.mpich.org (www.mpich.org)... 140.221.6.71
正在連接 www.mpich.org (www.mpich.org)|140.221.6.71|:80... 已連接。
已發出 HTTP 請求,正在等待迴應... 200 OK
長度:11862150 (11M) [application/x-gzip]
正在保存至: “mpich-3.2.tar.gz”
100%[=====================================================>] 11,862,150 213KB/s 用時 54s
2018-05-28 18:07:40 (215 KB/s) - 已保存 “mpich-3.2.tar.gz” [11862150/11862150])
[[root@c1 ~]# tar zxf mpich-3.2.tar.gz
[root@c1 ~]# ls
anaconda-ks.cfg initial-setup-ks.cfg mpich-3.2 mpich-3.2.tar.gz
[root@c1 ~]# cd mpich-3.2/
[root@c1 mpich-3.2]# ls
aclocal.m4 configure doc Makefile.in mpi.def src
autogen.sh configure.ac examples man README subsys_include.m4
CHANGES contrib maint mpich.def README.envvar test
confdb COPYRIGHT Makefile.am mpich-doxygen.in RELEASE_NOTES www
編譯
[root@c1 mpich-3.2]# ./configure --prefix=/usr/local/mpich
………………..
config.status: executing default-4 commands
Configuration completed. //中間一大串,看見這個就成功了
安裝:
注意:中間如果報錯,可能是缺少gcc、build-essential依賴,yum直接安裝就行了
[root@c1 mpich-3.2]# make && make install
安裝成功後同樣找不到命令,還是需要配置環境變量
[root@c1 mpich-3.2]# ls /usr/local/mpich/bin/* //這是之前指定的安裝目錄
/usr/local/mpich/bin/hydra_nameserver /usr/local/mpich/bin/mpiexec.hydra
/usr/local/mpich/bin/hydra_persist /usr/local/mpich/bin/mpif77
/usr/local/mpich/bin/hydra_pmi_proxy /usr/local/mpich/bin/mpif90
/usr/local/mpich/bin/mpic++ /usr/local/mpich/bin/mpifort
/usr/local/mpich/bin/mpicc /usr/local/mpich/bin/mpirun
/usr/local/mpich/bin/mpichversion /usr/local/mpich/bin/mpivars
/usr/local/mpich/bin/mpicxx /usr/local/mpich/bin/parkill
/usr/local/mpich/bin/mpiexec
添加環境和之前一樣
[root@c1 mpich-3.2]# tail -1 /etc/profile
PATH=$PATH:/usr/local/mpich/bin/
[root@c1 mpich-3.2]# source /etc/profile
這會兒就能看到mpicc的命令了。。。成功了
測試下:(還是利用上面那個例子)
[root@c1 ~]# mpicc -o test test.c
[root@c1 ~]# mpirun -np 4 ./test
Fatal error in MPI_Init: Other MPI error, error stack:
MPIR_Init_thread(474)..............:
MPID_Init(190).....................: channel initialization failed
MPIDI_CH3_Init(89).................:
MPID_nem_init(320).................:
MPID_nem_tcp_init(173).............:
MPID_nem_tcp_get_business_card(420):
MPID_nem_tcp_init(379).............: gethostbyname failed, c1 (errno 1)
同樣報錯…….
但是解決方法和上面那個完全一樣,都是host名字設置不一樣造成的