<html><head><meta http-equiv="Content-Type" content="text/html charset=big5"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Dear Adam,</div><div class=""><br class=""></div><div class="">Thanks for your response.</div><div class="">I checked the verbose output, and obtained the following messages:</div><div class=""><br class=""></div><div class=""><div class="">Executing: difxlog g3_7038 /data/lupin/g3-7038/g3_7038.difxlog 4 44843 &</div><div class="">Executing: mpirun -np 5 --hostfile /data/lupin/g3-7038/g3_7038.machines --mca mpi_yield_when_idle 1 --mca rmaps seq runmpifxcorr.trunk /data/lupin/g3-7038/g3_7038.input</div><div class="">--------------------------------------------------------------------------</div><div class="">Your job failed to map. Either no mapper was available, or none</div><div class="">of the available mappers was able to perform the requested</div><div class="">mapping operation. This can happen if you request a map type</div><div class="">(e.g., loadbalance) and the corresponding mapper was not built.</div><div class="">--------------------------------------------------------------------------</div><div class="">Elapsed time (s) = 0.351403951645</div></div><div class=""><br class=""></div><div class="">Then I compared with the mpirun command manually, and I found that the following command/description can be successfully performed.</div><div class="">------------------</div><div class="">mpirun -np 5 --hostfile /data/lupin/g3-7038/g3_7038.machines --mca mpi_yield_when_idle 1 mpifxcorr /data/lupin/g3-7038/g3_7038.input</div><div class="">------------------</div><div class=""><br class=""></div><div class="">However, I will meet the problem if I increase the parameters of “<font color="#ff2600" class="">--mac rmaps" </font>and<font color="#ff2600" class=""> "seq runmpifxcorr.trunk”</font>.</div><div class="">Should I avoid to use mapping operation?</div><div class=""><br class=""></div><div class="">Sincerely,</div><div class="">
<div class=""><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">--</span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">Lupin Chun-Che Lin</span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">Supporting Scientist of GLT (GreenLand Telescope) project </span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">in Institute of Astronomy and Astrophysics, Academia Sinica,</span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">14F of Astronomy-Mathematics Building (Rm: 1405), </span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">National Taiwan University. </span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">No.1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan.</span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">Tel: +886-2-2366-5464</span></div><div style="font-family: 新細明體, sans-serif; font-size: 14px;" class=""><span style="font-size: 12px;" class="">Fax: +886-2-2367-7849</span></div></div><div class=""><br class=""></div><br class="Apple-interchange-newline">
</div>
<br class=""><div><blockquote type="cite" class=""><div class="">Adam Deller <<a href="mailto:adeller@astro.swin.edu.au" class="">adeller@astro.swin.edu.au</a>> 於 2017年4月10日 下午6:45 寫道：</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi Lupin,<div class=""><br class=""></div><div class="">Try startdifx -v -v to get verbose output, and compare the mpirun command to the one you're using manually.</div><div class=""><br class=""></div><div class="">Cheers,</div><div class="">Adam</div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On 10 April 2017 at 19:00, Lupin Lin <span dir="ltr" class=""><<a href="mailto:lupin@asiaa.sinica.edu.tw" target="_blank" class="">lupin@asiaa.sinica.edu.tw</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="">To the experienced user of DiFX,<div class=""><br class=""></div><div class="">I have re-installed the DiFX on the OS of "Scientific Linux release 6.8 (Carbon)”.</div><div class="">However, when I performed the “startdifx”, I obtained the following error messages.</div><div class="">>>></div><div class=""><div class="">------------------------------<wbr class="">------------------------------<wbr class="">--------------</div><div class="">Your job failed to map. Either no mapper was available, or none</div><div class="">of the available mappers was able to perform the requested</div><div class="">mapping operation. This can happen if you request a map type</div><div class="">(e.g., loadbalance) and the corresponding mapper was not built.</div><div class="">------------------------------<wbr class="">------------------------------<wbr class="">--------------</div></div><div class=""><br class=""></div><div class="">But when I used the mpifxcorr, I did not get any error message and I can successfully obtain the result.</div><div class="">For example, I can use the following command to replace the startdifx:</div><div class=""><font color="#ff2600" class="">mpirun --machinefile g3_7038.machines -np 11 mpifxcorr g3_7038.input</font></div><div class=""><font color="#ff2600" class=""><br class=""></font></div><div class="">So it seems the problem is not due to the connection to the mpi.</div><div class=""><br class=""></div><div class="">Does anyone know the possible origin to cause this problem? And please give an indication to solve it.</div><div class=""><br class=""></div><div class="">Thanks,</div><div class="">
<div class=""><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">--</span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">Lupin Chun-Che Lin</span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">Supporting Scientist of GLT (GreenLand Telescope) project </span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">in Institute of Astronomy and Astrophysics, Academia Sinica,</span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">14F of Astronomy-Mathematics Building (Rm: 1405), </span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">National Taiwan University. </span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">No.1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan.</span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">Tel: <a href="tel:+886%202%202366%205464" value="+886223665464" target="_blank" class="">+886-2-2366-5464</a></span></div><div style="font-family:新細明體,sans-serif;font-size:14px" class=""><span style="font-size:12px" class="">Fax: <a href="tel:+886%202%202367%207849" value="+886223677849" target="_blank" class="">+886-2-2367-7849</a></span></div></div><div class=""><br class=""></div><br class="m_1102220975120268092Apple-interchange-newline">
</div>
<br class=""></div><br class="">______________________________<wbr class="">_________________<br class="">
Difx-users mailing list<br class="">
<a href="mailto:Difx-users@listmgr.nrao.edu" class="">Difx-users@listmgr.nrao.edu</a><br class="">
<a href="https://listmgr.nrao.edu/mailman/listinfo/difx-users" rel="noreferrer" target="_blank" class="">https://listmgr.nrao.edu/<wbr class="">mailman/listinfo/difx-users</a><br class="">
<br class=""></blockquote></div><br class=""><br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" style="font-size:12.8000001907349px" class=""><div dir="ltr" style="font-size:12.8px" class=""><div dir="ltr" style="font-size:12.8px" class=""><div dir="ltr" style="font-size:12.8px" class=""><div dir="ltr" style="font-size:12.8px" class="">!=============================================================!<br class="">Dr. Adam Deller </div><div dir="ltr" style="font-size:12.8px" class="">ARC Future Fellow, Senior Lecturer</div><div style="font-size:12.8px" class="">Centre for Astrophysics & Supercomputing </div><div dir="ltr" style="font-size:12.8px" class="">Swinburne University of Technology <br class="">John St, Hawthorn VIC 3122 Australia</div><div style="font-size:12.8px" class="">phone: +61 3 9214 5307</div><div style="font-size:12.8px" class="">fax: +61 3 9214 8797</div><div style="font-size:12.8px" class=""><br class=""></div><div style="font-size:12.8px" class="">office days (usually): Mon-Thu<br class="">!=============================================================!</div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
</div>
</div></blockquote></div><br class=""></body></html>