Realityserver crashed with two graphics cards

[jack lee]

Hi,
I meet a very strange question, it made me crazy. When my computer with one graphics card, my code run correct. But with two cards, and multiple users access different demos, the Realityserver crashed. Why one card is correct,but more cards is crashed? My cards are Tesla c2050 and Quadro 5000.

Thanks!

[jack lee]

Hi,
According to my test, I find if my computer with two graphics cards and all the applications use "sketch" renderer, then multiple users access different applications, the realityserver crashed. But if only use one card, the realityserver running properly.
Could anyone give me more informations about this?

Best regards.

[ak]

But with two cards, and multiple users access different demos, the Realityserver crashed. Why one card is correct,but more cards is crashed? My cards are Tesla c2050 and Quadro 5000.
!

What does RS crash mean in detail? What did the log say at this moment, especially in high verbose level (e.g. command line option -v 8)? Also the usage of the -gputrace command line option can bring some extra information on what happened on the gpus.
You mentioned this happens when the sketch renderer was used. Does this not happen with the other renderers, e.g. iray?
Is it possible that you are running out of gpu memory when loading the scene from too many user session? You can trace the gpu memory usage with the admin interface. By default it can be requested with http://<your_host>:8081(see section IRAY Configuration).

Best regards.

[jack lee]

Hi ak,
Thanks for answering me.
When i use the sketch , the operating system (Win7) shows the RS has something wrong, must shutdown. Actually,only two testers access the two different applications when I test. I don not think is possible running out of gpu memory . And if use iray, the RS running correct.
And i need to be emphasized, if i use one card, the RS applications( use sketch renderer) running ok, but two cards crashed. I use "-v 4" and "-gputrace" command, and do not find something useful messages about this. Is there any communication problems between two cards when using sketch?

[ak]

I use "-v 4" and "-gputrace" command, and do not find something useful messages about this. Is there any communication problems between two cards when using sketch?

In general this is supported by RealityServer. To narrow down what the cause of your problem could be, we would need to see the std out log information you receive when you start RS with "-gputrace". This gives more information about the gpu installation and driver usage on your machine. As already mentioned: also a recoded output in high verbose level could help.

Best regards.

[jack lee]

Hi ak,
I find the reason cause crash is the moment renderer changed from iray to sketch or sketch to iray.
There is a zip contain two txt files. Which i use "-gputrace" to record some messages. Hope that can give you some informations about my rs problem.
Best regards.

rs.zip

[ak]

Hi Jack,

The following log entry

  1.3   IRAY rend info : NVIDIA driver version: 27536

states that you are using 275.36.
Assuming that you are using RealityServer 3.1.1, we would recommend the following drivers:

Quadro  265.90(Windows) 260.19.21(Linux)
Tesla 263.06(Windows) 260.19.21(Linux)

as mentioned in the RS installation documentation (rsws-144525.5057/doc/getting_started/general/install-rs.pdf).

Best regards.

[jack lee]

Hi ak,

I use two Quadro 5000 cards, and install the 265.90 driver version. But RS still crashed. And i still think the reason cause crash is the moment renderer changed from iray to sketch or sketch to iray.

And, here is the windows wrong message:
Failure module name: libneuray_deved.dll
Abnormal code: c0000005

[ak]

Hello,

We haven't been able to reproduce this yet.

Please try the playground example 'switch render mode' and also trace the administration interface please as follows:

sketchTest.jpg

Please post a screen shot of your result.

Best Regards.