Hello dbmms,
I assume that your computer 'froze' for a short time, then began running again without any intervention on your part. HDC is not just our project with the largest memory requirement. It also has the largest check point file. Unfortunately, this presents the UD client with an unexpected situation. The UD client automatically encrypts the check point file using a hard coded 4K buffer, which is much too small a buffer for the large HDC check point. Rick Alther could modify the way BOINC stored the check points to minimize problems, but he could not do this for the UD client.

If this problem is unacceptable, then you can deselect the HDC project for all of your UD client machines.

Lawrence

Hi dbmms,
If you had to reboot, then something else went wrong. This is the first report I recall of a total freezeup. Unless others have the same problem, I would just shrug and call it inexplicable. Did you have anything else running at the same time?

Lawrence

Hi dbmms,

Actually, this is not such a good idea: there is not always sufficient HDC work to guarantee keeping all capable machines supplied. It's recommended, therefore, to have at least one other project selected in addition to HDC if you want to be sure your machine is always busy.

David.

i have stopped running all hdc projects on my machines as performance was severely affected. running all remaining projects without problems. hope future projects will not have similar memory requirements as hdc.