I believe the major problems are confined to people with 8 cores. 4 cores may also cause problems, and hyperthreading may be a problem (but I don't recommend hyperthreading anyway, and this is a good example of why not). It depends how much memory you have available.

If in doubt, check your page fault count.

As a rule of thumb, I would say "don't run HCC on more than 2 cores at once". Also, "allow 1GB per core running HCC". Like all rules of thumb, these may be totally useless. But I believe they cover the vast majority of cases reported here.

edit: Sekerob reminds me that L2 cache is one of the (if not the sole) limiting factor.

Actually, I have observed this problem on my old Pentium 4 machine, and on my dual core machine as well.

Steve

I've noticed the excess paging and poor point scores on several of my systems. My impression from reading the posts were they'd fix it when they got around to it - I just removed myself from the project. My electric bill is high enough as it is without running bad computing.

Un-official Grid.org Refugee Transition Center. > http://www.worldcommunitygrid.org/forums/wcg/...thread=12916&offset=0 13th post in

The topic was about ‘treating’ PTSD in the group from grid.org closing.

Courine:

Didactylos:

D, what were you saying? How was I getting a copy of grid.org’s forums? I clarified this later, but why would you comment? This may just be bad communication, but I see this too much with you and not with others. Case in point: “Henny Penny” thread. I’m sure others here could fill you in on that ditty, and how it related to “BOINC Damaging the Environment” thread. That was incredibly telling.

Now the problem is I need you to prove your statement: Where is there any real warning that there is a problem. What I see is you down playing like we are making a mountain out of a mole hill. And its me that is doing it. That I am the problem?

If you think I’m a problem, you will see others here know I have avoided a problem you don’t acknowledge. What you will find about the leagues is that your team will stand to gain a great deal if leagues here develop. The reason is: my distant history is your future when it comes the challenges. Ask Geo, I’m working with him to get the stats automated enough to run them for months. Making WCG Sports gripping, without the need for WCG to be burdened.

. You may have the option to turn the cache on or off in bios but that's it. You have no say in how it's used.

Maybe I've misunderstood you but the kernel is the core of the o/s - see http://en.wikipedia.org/wiki/Kernel_(computer_science).

As far as running on another partition. I know there was a thread about that - which i haven't read - but it is beyond me how running it in a different partion - even if its on another drive - will do any good. My boinc directory and all subdirectories are about 150meg for a quad core processor. This will easily fit into 4 gig of memory that I have. Plus, if you keep the defaults, boinc writes to the hard drive only once every 60 seconds. There should be no need for reads since as I said, the entire boinc directory represents about 4% of available ram. But even if I'm wrong on both of those points, unless an application is disk intensive, which boinc is not, disk access is several orders of magnitude slower than memory access anyway. So once the application has to go out to disk, you're already screwed - regardless of where boinc is installed.


There's no logical reason that this should be true. It may in fact be true, but to the extent it is, the blame lies with the programmers not the users.

Some of us have already tried that - maybe you'll have better luck. As long as you agree with with the official rap, I'm sure you won't have any problems. But once you've expressed an opinion critical of WCG or boinc, come back and let us know how that worked out. That's what Courine is talking about when she mentions "sheep" - people who go along with the herd and accept whatever they're fed - regardless of whether or not it squares with reality.

That's why I didn't even bother responding to Did's post. Anybody who has worked on HCC knows its not limited to 8 core machines or machines that are hyperthreaded or machines that have less than 1gig of ram per core. I have 1, 2 and 4 core machines that ran HCC and I still had the problem even without hyperthreading and at least 1 gig of ram per core.