Hi all,
I wonder if it is possible to use 'salloc' to reserve cores from a
certain partition, BUT, imposing a certain node (from that partition) an
using ONLY one core from this node.
This 'strange' allocation is explained by the need of using one server
to open connections to desktop graphics clients (paraview) using a pool
of nodes to do rendering tasks.
I tried the following config:
NodeName=jff[201-299,300-328] Weight=10 Procs=8 RealMemory=16000
Sockets=2 CoresPerSocket=4 ThreadsPerCore=1 State=UNKNOWN
NodeName=jff Weight=1 Procs=1 RealMemory=8000 Sockets=1 CoresPerSocket=1
ThreadsPerCore=1 State=UNKNOWN
PartitionName=global Nodes=jff[201-299,300-328] Default=YES
MaxTime=INFINITE State=UP
PartitionName=paraview \
Nodes=jff,jff[203,217-221,223-231,252,253,264,302] Default=NO
MaxTime=INFINITE State=UP
Then at the command line:
NCORES=16
COMMAND="mpirun -np $NCORES pvserver --server-port=$PORT"
salloc --partition=paraview --nodelist=jff --ntasks=$NCORES
--immediate=5 $COMMAND
But it is always allocating 7-8 cores on 'jff' node. Ideally, I would
like to allocate from 'jff' ONE core at a time until a maximum of 4. Is
it possible to do that?
Thanks in advance
Regards
--
Ramiro Alba
Centre Tecnològic de Tranferència de Calor
http://www.cttc.upc.edu
Escola Tècnica Superior d'Enginyeries
Industrial i Aeronàutica de Terrassa
Colom 11, E-08222, Terrassa, Barcelona, Spain
Tel: (+34) 93 739 86 46
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