如何导出计算节点的路径，并行编程
我在使用 ifort 时遇到问题。我用 ifort/mpich1 编译了一个代码，但每当我尝试在多个节点上运行它时，代码都会到达某个点并因错误而挂起：
symbol lookup error ... undefined symbol __svml_round2
在四处寻找时，我很确定这是由于 ifortvars shell 脚本而不是在计算节点上获取（如果我尝试在一个节点上连续触发代码，但没有获取 ifort 变量，我会得到完全相同的错误）。
绕过这个问题的最佳方法是什么？通过 mpirun 运行时，我的“.bashrc”文件似乎没有执行，因为我在 .bashrc 文件中有“source ...”命令。我还尝试将该行添加到 /etc/bash.bashrc 文件中，但没有成功。另外，我认为编译时的静态链接可能会解决问题，因此我
-i-static
-static
在使用 ifort 编译时包含了该问题，但无济于事，我仍然收到错误。
有谁知道如何绕过这个问题，本质上是如何使用 ifort 进行编译，以便在运行编译的程序时不需要“源 ifortvars”（更理想的解决方案），或者如何推出我的路径，或者如何通过 MPI 调用获取变量？谢谢。
I have a problem using ifort. I compiled a code with ifort/mpich1 but whenever I try to run it across several nodes the code gets to a certain point and hangs with an error:
symbol lookup error ... undefined symbol __svml_round2
In poking around, I'm pretty sure this is due to to the ifortvars shell script not being sourced on the compute nodes (if I try to fire the code serially on one node, but haven't sourced the ifort vars I get the same exact error).
What is the best way to bypass this problem? It seems my ".bashrc" file isn't executed when running through mpirun, since I have the "source ..." command in the .bashrc file. I also tried adding the line to the /etc/bash.bashrc file but got no luck. Alternatively I thought perhaps static linking when I compile would solve the problem so I included
-i-static
-static
when compiling with ifort but to no avail, I still get the error.
Does anyone know how to bypass this problem, essentially either how to compile with ifort so as not not need to "source ifortvars" when running a compiled program (a more desirable solution), or how to push out either my path, or how to source the vars through an MPI call? Thanks.
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您可以将环境变量作为 mpirun/mpirun_rsh 命令的一部分提供。
例如
导出 LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib;mpirun_rsh -ssh -host -np 2 -hostfile hostlist /home/usr1/app.exe -x /home/usr1/config/appconfig.xml
You can give environmental variables as part of the mpirun/mpirun_rsh command.
e.g.
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib;mpirun_rsh -ssh -host -np 2 -hostfile hostlist /home/usr1/app.exe -x /home/usr1/config/appconfig.xml