[mvapich-discuss] mpirun_rsh does not work with newer linux kernels

[PHILIPP, Axel, Dr.]

After upgrading to kernel 2.6.32.49-0.3-default (SLES11 SP1) mpirun_rsh
and mpispawn fail with bind errors.
Another problem arises with killing the remote processes because now rsh
and ssh use the user's shell instead of /bin/sh to execute commands.
Therefor the bash only syntax fails if the user's shell is ksh.
The following patches (applied to package mvapich-1.2.0-3635) resolve
both problems:

--- mpispawn.c.ori      2010-01-28 16:00:51.000000000 +0100
+++ mpispawn.c  2012-02-14 17:15:29.802596012 +0100
@@ -380,6 +380,7 @@
     }
 
     mc_sockaddr.sin_addr.s_addr = INADDR_ANY;
+    mc_sockaddr.sin_family = AF_INET;
     mc_sockaddr.sin_port = 0;
 
     if(bind(*mc_socket, (struct sockaddr *)&mc_sockaddr,
mc_sockaddr_len) < 0) { @@ -461,6 +462,7 @@
         exit (EXIT_FAILURE);
     }
     c_sockaddr.sin_addr.s_addr = INADDR_ANY;
+    c_sockaddr.sin_family = AF_INET;
     c_sockaddr.sin_port = 0;
 
     if (bind (c_socket, (struct sockaddr *) &c_sockaddr, sockaddr_len)
< 0) {
 


--- mpirun_rsh.c.ori    2010-01-28 16:00:51.000000000 +0100
+++ mpirun_rsh.c        2012-02-14 17:08:59.074910138 +0100
@@ -488,6 +488,7 @@
        exit(EXIT_FAILURE);
     }
     sockaddr.sin_addr.s_addr = INADDR_ANY;
+    sockaddr.sin_family = AF_INET;
     sockaddr.sin_port = 0;
     if (bind(s, (struct sockaddr *) &sockaddr, sockaddr_len) < 0) {
        perror("bind");
@@ -1484,7 +1485,7 @@
                    strcat(kill_cmd, tmp);
                }
 
-               strcat(kill_cmd, " >&/dev/null");
+               strcat(kill_cmd, " >/dev/null 2>&1");
 
                if(use_rsh) {
                    execl(RSH_CMD, RSH_CMD, pg->hostname, kill_cmd,
NULL); @@ -1554,7 +1555,7 @@
 
            if(!plist[i].remote_pid) exit(EXIT_SUCCESS);
 
-           snprintf(kill_cmd, 80, "kill -s 9 %d >&/dev/null",
+           snprintf(kill_cmd, 80, "kill -s 9 %d >/dev/null 2>&1",
                plist[i].remote_pid);
 
            if(use_rsh) {


Mit freundlichen Gruessen / Best Regards

Axel PHILIPP   Geb. 044/557
Dr. rer. nat., Dipl. Phys.

MTU Aero Engines GmbH
Informationswirtschaft/Entwicklungssysteme (FIE)
Information Management/Engineering Systems (FIE)
Dachauer Str. 665
80995 Muenchen
Germany

Tel  +49 (0)89 1489-4715
Fax +49 (0)89 1489-97533
mailto:Axel.Philipp at mtu.de


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