Le 29/08/2013 15:46, Jiri Hladky a écrit :
Hi Brice,

I'm sorry I have missed that e-mail. I agree that the output as originally requested would very long or take multiple lines. 

So what about this compromise - let's put into the graphical output only release tag (uname_buf.release)

uname -r

That's not a "portable" solution for showing something useful:
On Debian, it's not perfect, you just get 3.10-2-amd64 but not the 3.10.5 hidden in there (need uname -v for that)
On AIX 6.1, you just get "1" (need uname -v for the "6")
On BSD, uname -r isn't too bad, uname -v sometimes help, but sometimes it's veeeeeeery long.

Maybe just forget about the automatic way and let you call lstopo with something like --annotate-legend "Release: $(uname -r)" (and you deal with length constraints) ?


It's short and has the most important information.

What do you think?


On Tue, Aug 27, 2013 at 6:19 PM, Brice Goglin <Brice.Goglin@inria.fr> wrote:
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.


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!

On Tue, Jun 18, 2013 at 5:17 PM, Jiri Hladky <hladky.jiri@gmail.com> wrote:
Hi Brice,

we test linux kernel job scheduler. To do so, we run for example 

32 linpack benchmarks simultaneously. 
(upto the number of cores)

For each group of jobs we have this output:

=======2 simultaneous jobs========

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?