[Difx-users] FxManager: Error in launching writethread!!

[江悟]

Hi Chris and Adam,

Attached are the .v2d, .input, .vex files I used. I was using errormon2 when the error turned out, please check the last line of the errormon2.log. Unfortunately, when I used errormon this morning for re-correlating the same scans, no error reported.

Regards,
Wu

-----原始邮件-----
发件人: "Adam Deller" <adeller at astro.swin.edu.au>
发送时间: 2017年5月23日 星期二
收件人: "江悟" <jiangwu at shao.ac.cn>
抄送: difxusers <difx-users at listmgr.nrao.edu>
主题: Re: FxManager: Error in launching writethread!!


I don't recall seeing this before.  Might it be an error with pthreads generally?  Does it still occur if you're running a much smaller correlation?


Cheers,
Adam


On 23 May 2017 at 12:03, 江悟 <jiangwu at shao.ac.cn> wrote:

Hi all,

Recently I ran difx (2.4.1 version) and came cross the error as following:
FxManager: Error in launching writethread!!

I was using 100 cores and 4 threads each, 1 seperate header node as set in the v2d file. And the visbufferlength was set to 80. The number of stations was 3, the raw data was put in a RAID with parallel file system, while the visbility output was collected and recorded on the local disk of the header noder. Other correlation parameters was,
  tInt =0.131072
  subintNS = 8192000
  nChan = 512

I also checked the memory of the header node, the maximum occupied memory is less than 7%. So I don't know the reason of this error. Have you ever met this error before and could you please help to identify it?

Thanks a lot.

Best regards,
Wu Jiang










--

!=============================================================!
Dr. Adam Deller         
ARC Future Fellow, Senior Lecturer
Centre for Astrophysics & Supercomputing 
Swinburne University of Technology    
John St, Hawthorn VIC 3122 Australia
phone: +61 3 9214 5307
fax: +61 3 9214 8797


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