+1 for showing the total memory usage per node/machine. When I looked at the one in 3.14 I was thinking that it would be nice to know that information for all processes sharing the same memory.<br><br><div class="gmail_quote">
On Fri, Feb 10, 2012 at 2:11 PM, Burlen Loring <span dir="ltr"><<a href="mailto:bloring@lbl.gov">bloring@lbl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Great! let me know if there is anything I can do! More recently I had revised the panel to make launching remote gdb sessions easier, and making it easier to navigate through larger runs (256+ procs).<br>
<br>
I just noticed that the memory inspector panel in 3.14 is not reporting per-process values which is what I was expecting. So I was wrong, there is no bug in the units. Sorry for the false alarm.<span class="HOEnZb"><font color="#888888"><br>
<br>
Burlen</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
On 02/10/2012 11:14 AM, Utkarsh Ayachit wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Burlen,<br>
<br>
That looks pretty slick! If I had known earlier I would have started<br>
with your code :). Any case, what you have definitely sounds<br>
interesting. We should work on integrating the two in the future.<br>
<br>
Utkarsh<br>
<br>
On Fri, Feb 10, 2012 at 1:30 PM, Burlen Loring<<a href="mailto:bloring@lbl.gov" target="_blank">bloring@lbl.gov</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Utkarsh,<br>
<br>
Those sound like wonderful additions especially the new transfer function<br>
editor, I can't wait to start using 3.14!<br>
<br>
I want to share some experience re: the memory inspector as I had written<br>
something similar as a source plugin called the Process Monitor a while back<br>
(screen shot attached). In the memory inspector panel it would be useful to<br>
organize the server ranks by host name and display the total memory used on<br>
each host by the pvservers. This sum is necessary to know how close you are<br>
to actually running out.<br>
<br>
It may also be useful to display memory usage as both absolute and % used.<br>
The latter would easily enable adding visual ques to the panel (eg. row<br>
color is changed to red when more than 75% of memory is used on an<br>
individual host) to warn the user that they are in danger of a crash.<br>
<br>
You may want to consider adding an "override" for reporting the amount of<br>
free ram (and % used) when the server is run on an SMP such as NICS<br>
Nautilus. Although Nautilus has 4TB of ram, users need to request a specific<br>
amount of ram per core when submitting a job. The kernel will kill the<br>
process that uses more than the requested amount, so what the system reports<br>
as free memory is fairly useless.<br>
<br>
An old version of the Process Monitor is in the SciVisToolKit plugin, note<br>
that mac server side code is not finished so only windows and linux servers<br>
are currently are handled. The process monitor has a number of additional<br>
debugging features such as the ability to attach gdb to remote servers, and<br>
enable backtrace on sig SEGV etc.<br>
<br>
You should also double check that the memory used value you report is<br>
accurate. When I tested the 3.14 binary I noticed that it reports 4G used<br>
when top reports only using 425m. There may be a bug in your unit<br>
conversion.<br>
<br>
Hope this feedback is useful, I had intended to share this work but just<br>
haven't had the time to finish the mac implementation. It's great that you<br>
have added it!<br>
Burlen<br>
<br>
<br>
</blockquote></blockquote>
<br>
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