Used to be there. Turned on in bios and preferences in manager and account.

i7-4770K
Boinc Manager 7.4.42 x64

Only 4 tasks running.

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KenW

According to your computer details BOINC recognizes 8 CPU cores. So then you probably have a preference set to use only 50% of the CPUs.

Online computing preferences, make sure Use at most N% of the CPUs is set to 100;
or Advanced computing preferences, make sure On multiprocessor systems, use at most N% of the processors is set to 100%.

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Forgot !!!

Just upgraded ??? to Windows 10 from 8.1
Could it be the manager is not Win 10 ready ?

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KenW

Forgot !!!

Just upgraded ??? to Windows 10 from 8.1
Could it be the manager is not Win 10 ready ?

CPU-Z shows 8 threads

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KenW

Greetings,

I don't get it. Why would Windows have anything at all to do with whether a Intel chip has HT or not or that HT is set in the BIOS? If the machine's BIOS is set for HT, I don't see how or even why Windows would negate that. If this is something 'new' to Windows, Micro$oft is a bunch of fracking control freaks! :/ If I cannot run with HT on, then Win10 is not for me.

Keep on BOINCing...! :)

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CAPT Siran d'Vel'nahr - L L & P _\\//
Winders 11 OS? "What a piece of junk!" - L. Skywalker
"Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath

No, it was a preference setting that was set wrong. In BOINC 7.4.42 there is a bug that sets On multiprocessors, use at most N% of the processors to zero, but the zero here is not equal to no restriction (despite what it says). So that version will then still fall back on the previous On multiprocessors, use at most N of the processors value, which if I am not mistaken is default set to 2, or 4.

You can no longer change this last preference in the preferences here at Seti, because here that preference is deprecated for BOINC 7.6, which comes with all new preferences and prefs that are exactly the same in the local computing preferences, or those online.

Anyway, 7.4.42 has the bug that when the percentage of the multiprocessors is set to zero, as it was in the case of Ken that it will try to use zero CPU cores. But for that you cannot tell BOINC to do it that way, so therefore that fall-back to the previous set value. Ken set this preference to 100% and is now running on 8 processors.

I'll leave it to someone else to check if he needs to free a core to allow his Nvidia GTX 650 to run calculations faster.

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On most Nvidia GPU (I've not tried them all..) leaving a core free helps when processing APs, but has little effect on MBs.

I had "great fun" in convincing my latest cruncher, and my first Intel based cruncher, to continue running hyper-threading, it took a lot of effort in the BIOS for HT to come back after it went for a hike.

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

My Nvidia gpu is doing SETI ok.

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KenW

I tell it to have 0 work units in que and I still get lots of work units.
Telling it one day or .25 day makes no difference. I only run Boinc when I use this machine which is not every day. I have an oxygen concentrator running 24/7 and electric is sort of expensive with the summer rates.

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KenW