[Wien] I still have problem with wienk in parallel mode

[Nilton]

Dear Marks and Fecher,

I checked the cpu and it is 4 cores without hyperthread. I am running the
tasks in console not with w2web. I checked my dns and it is ok as you can
see below
--------------------------------------------ping output
[nilton at bodesking ~]$ ping compute-0-0
PING compute-0-0.local (10.1.255.254) 56(84) bytes of data.
64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=1 ttl=64
time=0.183 ms
64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=2 ttl=64
time=0.266 ms
64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=3 ttl=64
time=0.205 ms
64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=4 ttl=64
time=0.217 ms

--- compute-0-0.local ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2999ms
rtt min/avg/max/mdev = 0.183/0.217/0.266/0.035 ms
[nilton at bodesking ~]$ ping compute-0-1
PING compute-0-1.local (10.1.255.253) 56(84) bytes of data.
64 bytes from compute-0-1.local (10.1.255.253): icmp_seq=1 ttl=64
time=0.270 ms
64 bytes from compute-0-1.local (10.1.255.253): icmp_seq=2 ttl=64
time=0.257 ms

--- compute-0-1.local ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.257/0.263/0.270/0.017 ms
[nilton at bodesking ~]$

And here is the configurations of parallel_options
--------------------------------------------------------------------------------------------------------
setenv USE_REMOTE 1
setenv MPI_REMOTE 1
setenv WIEN_GRANULARITY 1
setenv WIEN_MPIRUN "mpirun -v -np _NP_ -machinefile _HOSTS_ _EXEC_"
---------------------------------------------------------------------------------------------------



2012/1/2 Gerhard Fecher <fecher at uni-mainz.de>

> just a remark
> Xeon X3430 do not come with hyperthreading and allows a max of 4 threads
> equal to the number of cores
>
> A fast check whether it uses all 4 cores is to check with top (type 1)
> with OMP_NUM_THREADS=4 running the lapw1 benchmark.
> (top will show you all active processors and how they are used)
> Note if you run Wien2k with W2Web it takes the number of threads from the
> time W2Web was started but not the
> one you give in the bash.rc. That means if you change the number of
> threads in bash.rc killl w2web and restart it.
> Check that there is not another setting of  OMP_NUM_THREADS or
>  MKL_NUM_THREADS to dynamic that overrides youre settings,
> in that case it may use something different, as Mark mentioned in a reply
> some time back.
>
I checked about OMP_NUM_THREADS and I have only one.


Any clues?
Nilton

-- 
Nilton S. Dantas
Universidade Estadual de Feira de Santana
Departamento de Ciências Exatas
Área de Informática
Av. Transnordestina, S/N, Bairro Novo Horizonte
CEP 44036900 - Feira de Santana, Bahia, Brasil
Tel./Fax +55 75 31618086
http://www2.ecomp.uefs.br/ <http://www.uefs.br/portal>
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