I am tired to manually unfreeze my hosts because the WU are freezing all hosts.
It is not serious.
I have spent month to help,
Enough is enough.
Farewell

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Hi
I confirm this problem. I tried to add an exception in the antivirus / firewall against directories, I tried to remove the antivirus / firewall, I tried to work with and without app_config.xml, I tried changing the number of cores in app_config.xml, I tried to work one WU or 2-3 in parallel with all cores or partially. All my efforts were in vain.
All my computers (4 PCs, 24/7, Win 10, Intel Xeon) freezed 1-2 times a day. In my experience the freeze occurs at different moments. I didn't find any system in it. My observations were complicated by the lack of ability to watch logs or monitoring because the freeze does not allow to do it.

Could this be some sort of Windows or Windows 10 error?

CoolAtchOk has Windows systems, I have Linux, I have not seem any evidence of freezing taking place.

His computers are much larger than mine and he says running single WUs or multiple work units at once makes no difference. I don't see any errors related to failed work units so they must all complete somehow.

I only run one WU at a time, the only thing I have noticed is that the multithreaded work units often seem to only use a single core but hold all cores (going on final times reported with run time and cpu time the same).
Could this be an issue with Windows not able to get any cpu time for other things it needs to do (basic house keeping), or perhaps it is a memory issue with it being tied up by the WU and not released so Windows can use it.

Not sure about marsinph, don't know if he is using Windows or Linux, if Windows I don't know if Windows 10 or not.

I know I am not really helping but offered help no matter how poor can still be of some help, sometimes.

Conan

I run yafu without problems on 2 different i5 laptop, one with win 10 and one with win 7. Always only one yafu workunit. Always without any freezing problem.

Could this be some sort of Windows or Windows 10 error?

CoolAtchOk has Windows systems, I have Linux, I have not seem any evidence of freezing taking place.

His computers are much larger than mine and he says running single WUs or multiple work units at once makes no difference. I don't see any errors related to failed work units so they must all complete somehow.

I only run one WU at a time, the only thing I have noticed is that the multithreaded work units often seem to only use a single core but hold all cores (going on final times reported with run time and cpu time the same).
Could this be an issue with Windows not able to get any cpu time for other things it needs to do (basic house keeping), or perhaps it is a memory issue with it being tied up by the WU and not released so Windows can use it.

Not sure about marsinph, don't know if he is using Windows or Linux, if Windows I don't know if Windows 10 or not.

I know I am not really helping but offered help no matter how poor can still be of some help, sometimes.

Conan

Hello Conan,
On all hosts I run I7-2600K, 16Gb RAM, only small and "4T" WU and limited to 4 cores web and local preferences. one WU at the same time.
All hosts under Win7 Ultimate. Three of my hosts are running only BOINC.
No problem of Firewall / AV

I do not think about a memùory problem : I have one WU already 23 hours running (twenty-three) !!!
Then additional problem : no checkpoint !!!

And to conclude, I have read here thjat Yafu not respect the agreement of BAM about limitation.of computings preferences (max CPU, max RAM,....).

Philippe

BTW, there is checkpointing in the later stages of the wu run. The checkpoint file is nfs.dat.
In early stages yafu runs different methods to factor a number. If all those different methods to not complete factor the number NFS (https://en.wikipedia.org/wiki/General_number_field_sieve) is used. NFS writes intermediate into the nfs.dat file. This is used as checkpoint file.

If you set BOINC to use only e.g. 4 CPU, than yafu will run only with 4 cores. And if you limit your RAM usage to 4 GB BOINC will not run a job which consumes more.