The problem I have while playing with this is that it takes a lot of
space. Putting the entire uname on a single line will be truncated when
the topology drawing isn't large (on machines with 2 cores for
instance). And using multiple lines would make the legend huge.
We could make it optional. But if you have to remember to manually
enable this new option, why not just remember to export to XML instead,
you already have all uname info in there.
Brice
Le 26/08/2013 15:11, Jiri Hladky a écrit :
> Hi Brice,
> hi all,
>
> I do run hwloc on different versions of Linux kernel when testing
> RHEL. Since sometimes kernel is buggy and does not detect the topology
> correctly it would be useful to have at the bottom of the graphical
> output of the lstopo not only host name but also the version of the
> kernel.
>
> Example of C code on Linux to write this info:
> ===============================================
> #include <sys/utsname.h>
> if(uname(&uname_buf) == -1)
> printf("uname call failed!");
> else {
> printf("Nodename:\t%s\n", uname_buf.nodename);
> printf("Sysname:\t%s\n", uname_buf.sysname);
> printf("Release:\t%s\n", uname_buf.release);
> printf("Version:\t%s\n", uname_buf.version);
> printf("Machine:\t%s\n", uname_buf.machine);
> }
>
> Nodename: localhost.localdomain
> Sysname: Linux
> Release: 3.10.7-100.fc18.x86_64
> Version: #1 SMP Thu Aug 15 22:21:29 UTC 2013
> Machine: x86_64
> ===============================================
>
>
> Suggestion: on the graphical output of lstopo please add the line
>
> System: Linux, x86_64, 3.10.7-100.fc18.x86_64 #1 SMP Thu Aug 15
> 22:21:29 UTC 2013
>
>
> printf("System: %s, %s, %s %s\n", uname_buf.sysname,
> uname_buf.machine, uname_buf.release, uname_buf.version);
>
> Would it be possible? Any further ideas, suggestions?
>
> Thanks a lot!
> Jirka
>
> On Tue, Jun 18, 2013 at 5:17 PM, Jiri Hladky <hladky.j...@gmail.com
> <mailto:hladky.j...@gmail.com>> wrote:
>
> Hi Brice,
>
> we test linux kernel job scheduler. To do so, we run for example
>
> 1
> 2
> ....
> 16
> 32 linpack benchmarks simultaneously.
> (upto the number of cores)
>
> For each group of jobs we have this output:
>
> =======2 simultaneous jobs========
> PID #CPU #CPU #CPU #CPU
> PID #CPU #CPU #CPU
> ==============================
>
> where first column is PID of linpack benchmark and other columns
> is CPU on which the process was running with granularity of 1 second
>
> I would like to check the possibilities to visualize the results
> to the output similar to lstopo --top (see the attachment). I
> would like to write a simple utility which will
> * parse the above file
> * foreach timestep create an output similar to lstopo --top
> output showing, where each job was running
>
> How difficult would be this? Could you please provide some hints
> what API functionality to use?
>
> Thanks!
> Jirka
>
>
