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charlene schaar
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Message 1372 - Posted: 19 Sep 2009, 3:08:10 UTC

Am I interpreting this "The v2.0 applications require CUDA 2.3 compatible drivers..." correctly? If I don't have a GPU w/ Cuda then I will no longer be able to run this project?

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Message 1373 - Posted: 19 Sep 2009, 3:23:45 UTC - in response to Message 1372.

No, there are CPU and ATI apps as well.

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Message 1376 - Posted: 19 Sep 2009, 3:38:41 UTC

One of the very few "universal" projects extant. Let us hope the trend continues ... I like to get ATI cards too ...

So, Collatz (like MW) will run on the CPU or the GPU regardless if it is ATI or Nvidia.

The thing is that for the Nvidia application to run correctly the support DLL has to be the right version. If you HAD been running the older Collatz version you would not get the updated DLL if you did not do a project reset.

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Message 1380 - Posted: 19 Sep 2009, 4:36:48 UTC
Last modified: 19 Sep 2009, 4:44:07 UTC

Thanks all for clearing this up for me :)

I am getting almost non-stop this group of replies when trying to download a new WU:
Your computer has no NVIDIA GPU (true)
Your computer has no ATI GPU (true)
won't finish in time (not true on my quad-core Phenom)
your BOINC client is old - please install current version (I'm running Boinc 6.6.36 & collatz_2.00_windows_x86_64)

What do I need to update?

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Message 1381 - Posted: 19 Sep 2009, 4:55:39 UTC - in response to Message 1376.

The plus side is, unlike MW, Collatz doesn't need double precision GPU cards, so it will work with less powerful (and power hungry) GPU configurations, including embedded ATI's (3200, 3300, 4200), and lower power Nvidia cards at least down to 8400's.

The minus side is for GPU support, you MUST be running the 6.10.x BOINC client and for Cuda support you MUST be running 190.38 or 190.62.

Another minus side is the changeover was done with VERY little notice (as in 24 hours or less).

The 'insult to injury' side is that those with caches of previous version Collatz work (in some cases built up in reaction to the very nasty crash/outage of last week) are getting skewered in credit payouts which are in effect put in place retroactively.

So the change looks good, the change *process*, timing, and work unit award action, seems far less than good.

I am certainly glad I don't deploy Collatz on any workstations I can't get to very quickly.



One of the very few "universal" projects extant. Let us hope the trend continues ... I like to get ATI cards too ...

So, Collatz (like MW) will run on the CPU or the GPU regardless if it is ATI or Nvidia.

The thing is that for the Nvidia application to run correctly the support DLL has to be the right version. If you HAD been running the older Collatz version you would not get the updated DLL if you did not do a project reset.

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Message 1382 - Posted: 19 Sep 2009, 5:00:17 UTC - in response to Message 1380.

What video card are you running? You might need to check the settings on the Collatz site to make sure you have specified no GPU work.

One of the 'features' of the 6.6.36 (and later 6.10.x betas) is they look first for GPU work (*even* if the particular project has no GPU support).

By the way, if your Phenom supporting motherboard has an embedded video -- that actually *might* be supported (what motherboard do you have?) PROVIDED you have a recent enough version of the video drivers.


Thanks all for clearing this up for me :)

I am getting almost non-stop this group of replies when trying to download a new WU:
Your computer has no NVIDIA GPU (true)
Your computer has no ATI GPU (true)
won't finish in time (not true on my quad-core Phenom)
your BOINC client is old - please install current version (I'm running Boinc 6.6.36 & collatz_2.00_windows_x86_64)

What do I need to update?

charlene schaar
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Message 1385 - Posted: 19 Sep 2009, 5:22:41 UTC - in response to Message 1382.

What video card are you running? You might need to check the settings on the Collatz site to make sure you have specified no GPU work.

Embedded video Radeon HD3200. I did have it set to no for "use GPU if available". May be a quirk, but after I set that to yes I haven't had any more of the long-winded "no work" messages *shrug*
By the way, if your Phenom supporting motherboard has an embedded video -- that actually *might* be supported (what motherboard do you have?) PROVIDED you have a recent enough version of the video drivers.

Not sure what mobo I have. It's a Gateway DX4200. Drivers are current.

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Message 1388 - Posted: 19 Sep 2009, 5:40:38 UTC - in response to Message 1382.

One of the 'features' of the 6.6.36 (and later 6.10.x betas) is they look first for GPU work (*even* if the particular project has no GPU support).

There is supposed to be a new feature in the server code so that the projects can now set the backoff to the full 24 hours instead of waiting for the exponential back-off mechanism to grow the back-off.

Sadly, UCB ignored the side effect of thousands of computers pinging for work for GPUs even when the project does not have GPU apps. I have my suspicion that some of the project server overloads we are seeing are a direct result of this penchant to ignore scalability issues when adding new features. Instead of defaulting towards not adding unnecessary actions the default seems to be lets add it and pretend that there are not real-world consequences.

And so projects like MW which are on the ragged edge have additional loads that they simply do not need. Of course since there are no tools in BOINC to measure most things all we can do is suspect.

Most hilarious was at the same time I was being patted on the head and told not to worry (as I recall it) there were discussions on how expensive it was to open a connection to the database by the Scheduler ...

Oh well ...

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Message 1391 - Posted: 19 Sep 2009, 6:26:52 UTC - in response to Message 1385.

OK -- with the 3200, you *can* get GPU work units -- but you will likely need to update your video driver to the current Catalyst/ATI combination :

http://support.amd.com/us/gpudownload/Pages/index.aspx

For Vista 32 bit that would be:

http://game.amd.com/us-en/drivers_catalyst.aspx?p=vista32/integrated-vista32

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Message 1392 - Posted: 19 Sep 2009, 6:29:50 UTC - in response to Message 1388.

Which is an example of just why I'm none too thrilled that Collatz is compelling use of the latest and greatest if you want GPU support.

I've been using 6.4.5 -- which is a 'least bad' of the 6x bunch of ah er code -- yes that's what it has been a load of warm steamy code.



Sadly, UCB ignored the side effect of thousands of computers pinging for work for GPUs even when the project does not have GPU apps. I have my suspicion that some of the project server overloads we are seeing are a direct result of this penchant to ignore scalability issues when adding new features. Instead of defaulting towards not adding unnecessary actions the default seems to be lets add it and pretend that there are not real-world consequences.

And so projects like MW which are on the ragged edge have additional loads that they simply do not need. Of course since there are no tools in BOINC to measure most things all we can do is suspect.

Most hilarious was at the same time I was being patted on the head and told not to worry (as I recall it) there were discussions on how expensive it was to open a connection to the database by the Scheduler ...

Oh well ...


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