[SimGrid-user] 回复: Analyze the trace file generated by MPI program

起小点 869971672 at qq.com
Tue May 29 09:08:40 CEST 2018


First of all thank you for your answer, and then I also want to ask how the white arrow is displayed in your attached file. There are no arrows in my figure, only the histogram is shown. Thanks again.




------------------ 原始邮件 ------------------
发件人: "Augustin DEGOMME"<adegomme at gmail.com>;
发送时间: 2018年5月27日(星期天) 晚上6:25
收件人: "起小点"<869971672 at qq.com>;
抄送: "simgrid-user"<simgrid-user at lists.gforge.inria.fr>; 
主题: Re: [SimGrid-user] Analyze the trace file generated by MPI program



Hello,

This trace is rather weird as only two processes finish properly. It may come from a run ending in a deadlock ?


But I found an annoying bug with receive tracing when MPI_STATUS_IGNORE is used, which indeed led to endlink events not being generated. It should be fixed on the trunk (commit  6e9d32f8c, will be soon on github). So links should be visible now on the trace, I checked with your code (see attached file).


Best regards,
Augustin


2018-05-27 5:18 GMT+02:00 起小点 <869971672 at qq.com>:
I use the MPI simulation module in SimGrid to generate a trace file for the MPI source code simulation run. This is my MPI source code (roundtrip.c), the result of executing the source code (Figures 4 and 5) and the generated trace file (smpi_simgrid.trace), and the graphics of the trace file visualization (Figures 6, 7 and 8) . I want to know the specific meaning of each number in the trace file. I have read the following PDF file (lang-paje.pdf), which only explains some of the numeric meanings. Other numbers hope someone can help me explain what it stands for(as shown by the red question marks in Figures 1, 2 and 3). Thank you!


I tried reading the trace file with pajeng and pj_dump. The result is shown in the figures pajeng.png and pajeng1.png. But I do not understand that the execution time has a negative value.I hope you can help me and answer this question again.  Thank you very much.

从QQ邮箱发来的超大附件

MPI_trace_trace file visualization.7z (1.13M, 无限期)进入下载页面:https://mail.qq.com/cgi-bin/ftnExs_download?k=683437643781dc9eea82ed574562034e51065453545a57561f0c0f07054f050300031a5d0651074c5102545151555302570351056347312c627d6810110352046d404505000711075b585244150b421453585e1e0216580e5c1a001e635f&t=exs_ftn_download&code=247dcb1a







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