[mpi4py] Comment afficher le hostname

Version imprimable

Bonjour,

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

J'arrive afficher ceci

Citation:

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:
Code:

1 2 3 4 5 6 7 8 9 #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.

Code:

comm.Get_processor_name()

me génère un erruer

Y-a-t-il la possiblité de voir toutes les possiblités avec 'comm'?

nerci pour vos lumières

20/07/2017, 19h15
nekcorp

Citation:

Envoyé par pierrot10

Code:

comm.Get_processor_name()

me génère un erruer

Salut,

C'est quoi l'erreur que tu récupères ?

Hello

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

Code:

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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
--------------------------------------------------------------------------

20/07/2017, 20h04
wiztricks
Salut,

Citation:

Envoyé par pierrot10

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

Vous devriez connaître la commande "help" a défaut de lire la documentation (qui contient celle de l'API).
Ceci dit, pour récupérer le nom du host courant, sans vous prendre la tête avec MPI peut se faire (entre autres) avec:
Code:

1 2 import platform platform.node()
ou encore:
Code:

1 2 import socket socket.gethostname()
comme vous pourriez le trouver aussi avec un peu de recherche sur Internet.

- W

That's works...

Code:

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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