Project Lasso is recognizing my i7 920 Intel processor as having only 1 core

Steven G · January 18, 2015, 08:54:16 AM

Can't select other than Core 0 in Process Affinity. I have 4 physical cores and 4 virtual cores. Hyperthreading is on.

BenYeeHua · January 18, 2015, 09:32:31 AM

Check your Task Manager? It sound like your OS(msconfig) or BIOS is the cause...

Jeremy Collake · January 18, 2015, 02:54:19 PM

Yes, that information really can't be wrong. It comes from the OS (Windows), which gets it from the UEFI/BIOS.

I suppose some bizarre bug could exist, but I've never heard of anything like this.

Can you give us a screenshot so we better understand? One of Process Lasso and one of the Task Manager (taskmgr.exe).

Thanks!

Steven G · January 18, 2015, 10:31:12 PM

I seem to vaguely remember seeing 8 cores in Task Manager a long time ago. I attached a screen pic of Task Manager Performance tab and it only showed one big long core tracing box. Couldn't figure out how to get it into this post. 2015-01-18_222303.png.

Steven G · January 18, 2015, 10:37:39 PM

I ran msconfig and checked everything. I also checked the BIOS. Maybe I should see if the Dell community knows anything about cores not set up. I'm sure it's something I changed. I rebooted but maybe I'll do a cold reboot.

Thanks for replying! I'll be checking here.

Steven

Steven G · January 18, 2015, 11:37:28 PM

I turned off Hyper-Threading in the BIOS and now I have 4 cores. I'm still thinking that there should be the 4 virtual cores in Task Manager but maybe I can figure it out.

Steven

edkiefer · January 19, 2015, 07:33:31 AM

Ok, In your task-manager veiw tave make sure you have for CPU history = one graph per CPU .

This should show each core separately

Steven G · January 19, 2015, 10:00:51 AM

Yes, it was already set to that and not showing 4 virtual cores. Just the physical cores. But I don't think it's that important to see virtual cores, unless someone has an idea. Thank you all for pointing me in the right directions.

Steven

Jeremy Collake · January 19, 2015, 11:10:18 AM

It's not. That setting shows all logical cores. (a logical core can be either virtual or physical).

I have no idea what is going on here, but it sounds odd.

It's definitely not related to Process Lasso in any way.

It's something with the hardware or low-level OS. Turning OFF hyper-threading in the UEFI/BIOS should have reduced the # of logical cores by 1/2, not multiplied them by 4 (1 to 4).

edkiefer · January 19, 2015, 11:49:32 AM

does resource monitor show same, single CPU graph too ?

BenYeeHua · January 19, 2015, 12:15:06 PM

May sound stupid, try take our your BIOS CMOS battery(with the plug unplugged/computer power off), then after 1 min, put it back, this should reset all your BIOS settings.

If the HT still causing your 3 other real core gone, then it can be your CPU is damaged, and somehow don't like with HT enabled.

Steven G · January 20, 2015, 12:13:34 AM

Went to Performance Monitor in Task Manager, to CPU tab, and with View could show history of all 4 cores.

Jeremy Collake · January 20, 2015, 12:52:41 AM

This whole thread has me a bit perplexed.

Where are you 'at' now? I mean, can you describe the problem in as few words as possible, and if you still think there is any issue with Lasso?

BenYeeHua · January 20, 2015, 02:17:04 AM

I guess it is just a issues with the system/BIOS/motherboard/CPU now.

edkiefer · January 20, 2015, 07:26:02 AM

That is my take, I don't see how PL can be a issue .
I would reset bios as Ben mentions or reflash, if that doesn't fix it if it was ok at one point .
Sometimes bios get messed up .

Jeremy Collake · January 20, 2015, 01:17:46 PM

Yea, is this a custom PC build? If so, you gotta consider potential thermal issues too. The heatsink really must be mounted just right and thermal conditions appropriately controlled. It's something retail manufacturers have to design for, and sometimes even then fail.