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Jim Dean

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Posts: 3022

Joined: 9/21/2006
Location: L'ville, GA

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Subject : RE: Windows 7 and i7 processor
Posted : 7/3/2018 7:48 AM
Post #44926 - In reply to #44925

Hi Maciej

Thanks for the info. 99% of the user’s coming to this thread probably don’t need quite that much nuancing on their machines - typically they want to know broad-brush stuff.

Ed’s and the N staff are well-aware of the 64bit and multithread and larger-RAM-support desires that many users have expressed for well over ten years now. The internal costs required to do that kind of massive overhaul to the complete bundle of software routines that make up OT (some pieces possibly still using VB6) would be so high that the only way they will be able to afford it is to wait till after they see major financial success via one of their macro ventures such as OmniFunds or iOmniVest, etc. So don’t hold your breath on that. They understand the trade offs.

My usual recommendations re speeding up OT - esp when someone is planning extensive modeling runs via SW (ie back to back on a regular basis) are:

1) using multiple VM’s is cheaper overall than using multiple machines.

2) a machine that can run 2-3 VM’s at a moderate speed is morecost effective than one machine that runs one OT instance at blazing speed (since RAM is cheaper than clock speed)

3) with multiple VM’s OT *can* run with just one virtual core but two per OT instance is better (presuming hyperthreading). And 3GB RAM per single OT-only VM instance is adequate, while more than 4 is overkill (since OT maxes out at 2GB for its working live data).

4) when a fast processor is run continuously for hours or days then cooling is important since either the clock speed will auto-reduce as the chip gets hot, or occasional computational errors can creep in (this is especially important for laptops - therefore Xeon chips are better for laptops since they are purpose-designed to run full out, continuously).

5) for long term continuous running, an SSD is not crucial (pun intended) but for most users, an SSD will speed up load times enough to be desirable. OT does not normally do a bunch of multi-cluster/sector hard-drive read writes during its normal execution.

7) i7’s at any speed are definitely better and more cost effective re OT throughput speed than i5’s or lower. I don’t know if i9’s are sold much anymore but is used to be that their performance for the price was not as good as i7’s.

8) although it’s difficult to test, logically, a reasonable “boost” in L3 or L2 cache will help OT speed at a similar level as increasing the chip speed by another notch.

9) keeping the platform “clean” (regular profile rebuilds & occasional data rebuilds) lessens likelihood of OT-error shutdowns. Some users have found that regular OT data-file cleanup/maintenance is advisable as well, though I personally have not seen that need as much - I think it is more likely needed for people using the AI tools with SW).

10) Obviously, keep the OS skinny and free from extraneous stuff running in the background, though if you’ve got two full cores (4 hyperthead cores) and 4-6G RAM per instance, this is less essential - usually.

RE VM’s: a couple of expert-VM users in particular have written *extensively* about using VM’s with OT (including how tos and nuances) in the TradeTight forum - click here and study the info in the first several Threads “stuck” to the top of the list.

That’s about as many generalizations as I can provide, gleaned from personal research, work published here and in TradeTight by others, general knowledge about OT’s code structure, and general advice provided by N staff and other power users.

Hope it helps!

[Edited by Jim Dean on 7/3/2018 8:03 AM]

Deleting message 44926 : RE: Windows 7 and i7 processor


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