Dear Marks and Fecher,<br><br>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<br>--------------------------------------------ping output<br>
[nilton@bodesking ~]$ ping compute-0-0<br>PING compute-0-0.local (10.1.255.254) 56(84) bytes of data.<br>64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=1 ttl=64 time=0.183 ms<br>64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=2 ttl=64 time=0.266 ms<br>
64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=3 ttl=64 time=0.205 ms<br>64 bytes from compute-0-0.local (10.1.255.254): icmp_seq=4 ttl=64 time=0.217 ms<br><br>--- compute-0-0.local ping statistics ---<br>4 packets transmitted, 4 received, 0% packet loss, time 2999ms<br>
rtt min/avg/max/mdev = 0.183/0.217/0.266/0.035 ms<br>[nilton@bodesking ~]$ ping compute-0-1<br>PING compute-0-1.local (10.1.255.253) 56(84) bytes of data.<br>64 bytes from compute-0-1.local (10.1.255.253): icmp_seq=1 ttl=64 time=0.270 ms<br>
64 bytes from compute-0-1.local (10.1.255.253): icmp_seq=2 ttl=64 time=0.257 ms<br><br>--- compute-0-1.local ping statistics ---<br>2 packets transmitted, 2 received, 0% packet loss, time 1000ms<br>rtt min/avg/max/mdev = 0.257/0.263/0.270/0.017 ms<br>
[nilton@bodesking ~]$ <br><br>And here is the configurations of parallel_options <br>--------------------------------------------------------------------------------------------------------<br>setenv USE_REMOTE 1<br>setenv MPI_REMOTE 1<br>
setenv WIEN_GRANULARITY 1<br>setenv WIEN_MPIRUN "mpirun -v -np _NP_ -machinefile _HOSTS_ _EXEC_"<br>---------------------------------------------------------------------------------------------------<br><br><br>
<br><div class="gmail_quote">2012/1/2 Gerhard Fecher <span dir="ltr"><<a href="mailto:fecher@uni-mainz.de">fecher@uni-mainz.de</a>></span><br><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
just a remark<br>
Xeon X3430 do not come with hyperthreading and allows a max of 4 threads equal to the number of cores<br>
<br>
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.<br>
(top will show you all active processors and how they are used)<br>
Note if you run Wien2k with W2Web it takes the number of threads from the time W2Web was started but not the<br>
one you give in the bash.rc. That means if you change the number of threads in bash.rc killl w2web and restart it.<br>
Check that there is not another setting of OMP_NUM_THREADS or MKL_NUM_THREADS to dynamic that overrides youre settings,<br>
in that case it may use something different, as Mark mentioned in a reply some time back.<br></blockquote><div>I checked about OMP_NUM_THREADS and I have only one. <br></div><br><br>Any clues?<br>Nilton<br clear="all"></div>
<br>-- <br>Nilton S. Dantas<br>Universidade Estadual de Feira de Santana<br>Departamento de Ciências Exatas<br>Área de Informática<br>Av. Transnordestina, S/N, Bairro Novo Horizonte<br>CEP 44036900 - Feira de Santana, Bahia, Brasil<br>
Tel./Fax +55 75 31618086<br><a href="http://www.uefs.br/portal" target="_blank">http://www2.ecomp.uefs.br/</a><br><br>