Discussion :

[pierrot10]

Bonjour,

Je suis super d�butant et je fais un exercise pour que mon script affiche le nom de mes noeuds de mon cluster.

J'arrive afficher ceci

mpiexec -n 13 python hello.py
Hello word from process 3 of 13
Hello word from process 7 of 13
Hello word from process 8 of 13
Hello word from process 10 of 13
Hello word from process 11 of 13
Hello word from process 12 of 13
Hello word from process 6 of 13
Hello word from process 1 of 13
Hello word from process 0 of 13
Hello word from process 9 of 13
Hello word from process 5 of 13
Hello word from process 2 of 13
Hello word from process 4 of 13

avec ceci:

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#hello.py
from mpi4py import MPI
comm = MPI.COMM_WORLD
rank = comm.Get_rank()
size = comm.Get_size()
#hostname = comm.Get_processor_name()
print "Hello word from process", rank, " of ", size
#print "hello world from ",hostname,". Process ", rank, " of ", size

Simplement, j'aimerais bien avoir le nom de noeuds, soit l'hostname.

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comm.Get_processor_name()

me g�n�re un erruer

Y-a-t-il la possiblit� de voir toutes les possiblit�s avec 'comm'?

nerci pour vos lumi�res

[nekcorp]

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comm.Get_processor_name()

me g�n�re un erruer

Salut,

C'est quoi l'erreur que tu r�cup�res ?

[pierrot10]

Hello

Il esmble Get_processor_name est "inconnU"
Est-ce qu'on peut afficher les attribut disponible de l'objet?

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mpiexec -n 13 python hello.py 
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'Traceback (most recent call last):
 
  File "hello.py", line 6, in <module>
    Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
hostname = comm.Get_processor_name()
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
Traceback (most recent call last):
  File "hello.py", line 6, in <module>
    hostname = comm.Get_processor_name()
AttributeError: 'mpi4py.MPI.Intracomm' object has no attribute 'Get_processor_name'
-------------------------------------------------------
Primary job  terminated normally, but 1 process returned
a non-zero exit code.. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpiexec detected that one or more processes exited with non-zero status, thus causing
the job to be terminated. The first process to do so was:
 
  Process name: [[64590,1],12]
  Exit code:    1
--------------------------------------------------------------------------

[wiztricks]

Salut,

Est-ce qu'on peut afficher les attribut disponible de l'objet

Vous devriez conna�tre la commande "help" a d�faut de lire la documentation (qui contient celle de l'API).
Ceci dit, pour r�cup�rer le nom du host courant, sans vous prendre la t�te avec MPI peut se faire (entre autres) avec:

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import platform
platform.node()

ou encore:

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import socket
socket.gethostname()

comme vous pourriez le trouver aussi avec un peu de recherche sur Internet.

- W

[pierrot10]

That's works...

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#hello.py
from mpi4py import MPI
comm = MPI.COMM_WORLD
rank = comm.Get_rank()
size = comm.Get_size()
hostname = MPI.Get_processor_name()
#print "Hello word from process", rank, " of ", size
print "hello world from ",hostname,". Process ", rank, " of ", size