我在 centos 7 上设置了一个 warewulf 集群，并安装了 openmpi-x86_64-1.10.0-10.el7，此外还安装了 mpich。当我使用 openmpi 运行 mpirun 时，会出现以下错误，使用 mpich 时则运行正常。将 n0000 更改为集群主节点也可以，但它没有在节点中运行。
mpirun -n 1 -host n0000 echo $HOSTNAME
[n0000.cluster:01719] [[24772,0],1] tcp_peer_send_blocking: send() to socket 9 failed: Broken pipe (32)
--------------------------------------------------------------------------
ORTE was unable to reliably start one or more daemons.
This usually is caused by:
* not finding the required libraries and/or binaries on
one or more nodes. Please check your PATH and LD_LIBRARY_PATH
settings, or configure OMPI with --enable-orterun-prefix-by-default
* lack of authority to execute on one or more specified nodes.
Please verify your allocation and authorities.
* the inability to write startup files into /tmp (--tmpdir/orte_tmpdir_base).
Please check with your sys admin to determine the correct location to use.
* compilation of the orted with dynamic libraries when static are required
(e.g., on Cray). Please check your configure cmd line and consider using
one of the contrib/platform definitions for your system type.
* an inability to create a connection back to mpirun due to a
lack of common network interfaces and/or no route found between
them. Please check network connectivity (including firewalls
and network routing requirements).
--------------------------------------------------------------------------
下面您可以找到集群和服务器 IP 地址输出。我还查看了https://www.open-mpi.org/community/lists/users/2015/09/27643.php其中描述了类似的问题，但我认为我没有同一子网中的接口。
Server:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:2e:ee:c2 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3
valid_lft 85746sec preferred_lft 85746sec
inet6 fe80::a00:27ff:fe2e:eec2/64 scope link
valid_lft forever preferred_lft forever
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:76:b9:e7 brd ff:ff:ff:ff:ff:ff
inet 10.1.1.1/24 brd 10.1.1.255 scope global enp0s8
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:fe76:b9e7/64 scope link
valid_lft forever preferred_ft forever
Node:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/24 scope host lo
valid_lft forever preferred_lft forever
inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 08:00:27:57:46:ce brd ff:ff:ff:ff:ff:ff
inet 10.1.1.10/24 brd 10.1.1.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::a00:27ff:fe57:46ce/64 scope link
valid_lft forever preferred_lft forever
有什么想法吗？
答案1
您在哪里安装 OpenFOAM？
您是否将其安装在 /opt/ 或 /home/username/OpenFOAM 上？
如果您执行了第一个操作，则计算节点无法找到您的顶级位置（/ opt /）