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<div class="moz-cite-prefix">On 04/25/2016 05:06 PM,
<a class="moz-txt-link-abbreviated" href="mailto:EBradley@williams-int.com">EBradley@williams-int.com</a> wrote:<br>
</div>
<blockquote
cite="mid:63C66AB9E0753F46A502CD90F8FBACA8F1382C@EXCHSRV.williams-int.com"
type="cite">
<p class="MsoNormal"><span style="font-size:10.0pt">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">I’ve just
recently begun using the Nvidia drivers from el repo installed
via yum as opposed to the manually installed .run packages
downloaded from Nvidia.com for our engineering workstations
running RHEL 6. While I love the fact that the el repo drivers
do not need to be reinstalled after every kernel upgrade, one
of my users has just shown me a valid case in which the
performance of the el repo Nvidia drivers is different from
the .run package. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">First, some
basic info regarding the environment:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">User’s
System: Dell Precision T7810<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Video Card:
Nvidia Quadro K620<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">OS: RHEL 6.6<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Kernel:
2.6.32-573.22.1.el6.x86_64<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Driver - el
repo (361.42): kmod-nvidia.x86-64 nvidia-x11-drv.x86_64
nvidia-detect.x86_64<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Driver -
Nvidia.com: </span><span
style="font-size:9.0pt;font-family:"Trebuchet
MS","sans-serif";color:black;background:white">NVIDIA-Linux-x86_64-361.42.run<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Trebuchet
MS","sans-serif";color:black;background:white">Nouveau
driver - blacklisted in /etc/modprobe.d/blacklist.conf<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">I’ll try to be
descriptive of the situation without being long-winded:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">When viewing
the results of an analysis in Ansys Mechanical with the el
repo driver, a part is displayed and can be manipulated at
will when viewing the general results. If, however, the user
selects one of the ‘Total Deformation’ selections within the
results tree, the part disappears from the Mechanical window.
Conversely, when the el repo drivers are uninstalled and the
Nvidia.com driver is installed from the .run package, the
Total Deformation part is displayed as expected, showing the
regions of varying color gradients depicting the areas of
more/less deformation over the surface of the part. I was able
to reproduce this behavior on my test machine, a Dell
Precision T5500 with an Nvidia Quadro K600. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">I certainly
don’t want to come off like I’m blaming the el repo driver or
anything. Rather, I’m interested to know if anyone has
experienced anything similar (I’ve checked the previous year
of posts and will keep working backward) and also if there’s
something I may have missed or misconfigured when installing
the drivers via el repo/yum vs. manually installing the .run
package. Basically, did I goof or is there a valid difference
between the el repo drivers and the .run package from
Nvidia.com?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Thanks in
advance, and I am happy to provide more detail/logs/answer
questions/etc. And my apologies for any legal jargon that is
appended to this message, it is automatically-generated and
outside of my control.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</blockquote>
Hello<br>
<br>
The first thing that pops to mind is to run a ls -lR / before
installing any of the drivers, after installing the elrepo package
and ( after restoring the system to the pristine status ) after
installing via .run. Then do a diff3 using all three file lists and
pastebin ( or attach ) the diffs<br>
<br>
Manuel
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