[Beowulf] Re: Beowulf Digest, Vol 42, Issue 50

Jörg Saßmannshausen sassmannshausen at tugraz.at
Fri Aug 31 14:54:59 EDT 2007


Hi

I assume that this error message:

> mpirun: cannot start a.out on n1: No such file or directory

indicates that on n1 that file is not in the same path as on any of the other 
nodes (i.e. something like /srv/home instead of /home) and hence the file 
cannot be found. I would check this as well.

I hope it helps

Jörg

Am Freitag 31 August 2007 19:31 schrieb beowulf-request at beowulf.org:
> Message: 1
> Date: Thu, 30 Aug 2007 10:45:47 -0500
> From: "Nestor Waldyd Alvarez Villa" <nestor.alvarez at upb.edu.co>
> Subject: [Beowulf] Node not answering...
> To: beowulf at beowulf.org
> Message-ID: <op.txvp2lahbv8d16 at airevi.upb.edu.co>
> Content-Type: text/plain; format=flowed; delsp=yes;
>         charset=iso-8859-15
>
> Hi...
>
> When running the hellow_mpi sample program, the following was prompted:
>
> [waldyd at simeca ~]$ lamnodes
> n0      storage.cluster:1:origin,this_node
> n1      node02:2:
> [waldyd at simeca ~]$ mpirun -np 8 -v a.out
> 6726 a.out running on n0 (o)
> mpirun: cannot start a.out on n1: No such file or directory
> [waldyd at simeca ~]$ mpirun -np 8 -v -s n0 a.out
> 6728 a.out running on n0 (o)
> 4967 a.out running on n1
> 4968 a.out running on n1
> 6729 a.out running on n0 (o)
> 4969 a.out running on n1
> 4970 a.out running on n1
> 6730 a.out running on n0 (o)
> 4971 a.out running on n1
> Hellow, MPI! (3/8)-- simeca.gialea
> Hellow, MPI! (0/8)-- simeca.gialea
> Hellow, MPI! (6/8)-- simeca.gialea
> [waldyd at simeca ~]$
>
> As you can see, node "n1" is not answering. Any ideas about how to solve  
> this issue?
>
> Beforehand Thanks...
>
> --
>
> Nestor Waldyd Alvarez Villa | Ingeniero Investigador | Grupo de  
> Investigaciones Ambientales (GIA)
> Universidad Pontificia Bolivariana | Circular 1 No. 70-01, Bloque 8. Piso  
> 2. | Medellín, COLOMBIA
> Tel: (57) (4) 4159015 Ext. 9841 | (57) (4) 415 90 84 | Fax: (57) (4)  
> 4159082
> mailto:nestor.alvarez at upb.edu.co | www.upb.edu.co |  
> http://convena.upb.edu.co/~gialea/

-- 
*************************************************************
Jörg Saßmannshausen
Institut für chemische Technologie organischer Stoffe
TU-Graz
Stremayrgasse 16
8010 Graz
Austria

phone: +43 (0)316 873 8954
fax: +43 (0)316 873 4959
homepage: http://sassy.formativ.net/
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