Intel to AMD Processor

[Outlaw]

I recently upgraded my game rig from a dual core Intel to a six core AMD based machine and simply copied my game directory to the new rig. This has worked in the past, but, I have never changed processor architecture before. The result is that 4.11m runs very poorly (I didn't even try 4.10m on this rig before patching to 4.11m). I know there were some processor specific dll files that went around but I can't remember what they were.

Does anyone know if the current code needs the processor specific dlls and, if so, what and where those files are located.

Also, has anyone had experience with such a switch and would it be better to just reinstall from scratch. If that is the case, what is the upgrade path? I don't think I have every single patch saved from 1946 on.

Thanks!

--Outlaw.

[Jumoschwanz]

I would hope that someone from TD will chime in on this. All I know is that in the past after certain patches sets of core DLLs were released separately.

The newest set I have is from 2008, one is called il2_core.dll and the other il2_corep4.dll. The readme file given with these states:

"Corrected Color of the forest and decreased contrast of its edge.
Corrected (more complex) line of the water on the coasts of the rivers and the coast itself.
Anisotropic filtering in IL2 setup sets less level of anisotropy.
An attempt was made to decrease reflection flickering of the water on setting =2
Almost completely rewritten render of the ground on shaders 2.0. ATI cards should see performance increase.
Changed regime of filtration on the edge of the forest to reduce flickering. Possible slight FPS loss near the forest."

If you want me to email them to you I can do that, but I can not believe that someone from TD would not be able to tell you if they would even do any good at this stage in the game.

Even though your processor has more cores and you are running a 64-bit operating system, IL2 is still an old piece of software that may not take advantage of newer technology. I find that the most important thing for a cpu to have when running IL2 is speed, as in it is a lot better to have a single core processor running at 3.0ghz than a multi-core running at 2Ghz.

If your new cpu runs at lower GHz than your old Intel, then despite having more cores I do not think it will run IL2 as well. AMD cpus used to complete more instructions per clock cycle than Intels back in the AThlon vs. P4 single-core days a 2Ghz Athlon would run as well as a 3Ghz Intel, I am not sure if this holds true in their current processors though. My last AMD Athlon ran at 2.2Ghz, and a lot of people that switched to the new multi-cores as soon as they came out were disappointed with them because their lower clock speeds would not let them run IL2 as well or any better than the fastest single cores.

So the same thing may be happening again. If the speed of your new six-core is less than your old cpu with less cores, or it is rated at less instructions per clock cycle especially when operating 32-bit software, then it may not run IL2 as well as older but higher Ghz hardware!!!!!

[KG26_Alpha]

Originally Posted by Outlaw

I recently upgraded my game rig from a dual core Intel to a six core AMD based machine and simply copied my game directory to the new rig. This has worked in the past, but, I have never changed processor architecture before. The result is that 4.11m runs very poorly (I didn't even try 4.10m on this rig before patching to 4.11m). I know there were some processor specific dll files that went around but I can't remember what they were.

Does anyone know if the current code needs the processor specific dlls and, if so, what and where those files are located.

Also, has anyone had experience with such a switch and would it be better to just reinstall from scratch. If that is the case, what is the upgrade path? I don't think I have every single patch saved from 1946 on.

Thanks!

--Outlaw.

It's possibly a combination of drivers for mobo chipset/s, gpu, cpu, ram timings etc etc.

Have a good look at the manual for setting up the mobo correctly,
sometimes putting a new PC together can result in an oversight in the small detail being missed over the big new shiny stuff

Setting the process affinity mask can help also.


My quad core uses core number 3 to run IL2 set like this in the conf.ini

ProcessAffinityMask=4

Which is > Bitmask: 00100 = Decimal 4


Below is a short explanation that might help .


Processor Affinity Explained


"IL-2 is not a ,multithread application." True

IL-2 only uses 1 core" False.


=1 - core 0
=2 - core 1
=3 - core 0+1
=4 - core 2
=5 - core 0+2
=6 - core 1+2
=7 - core 0+1+2
=8 - core 3
=9 - core 0 + 3
=10 - core 1 + 3
=11 - core 0 + 2 + 3
=12 - core 2 + 3
=13 - core 0 + 2 + 3
=14 - core 1 + 2 + 3
=15 - core 0 + 1 + 2 + 3

commented out - all cores

If a core is enabled, it does NOT mean that core will be performing 100% while the other cores that are not enabled do nothing.
The enabled core needs an active thread to perform,
The disabled cores will be assigned tasks by the OS if needed.
There is only one way to switch off cores - the power switch - meaning all or nothing lol.

An understanding of binary bit system will help with the next section.
Binary is simply an on/off value for a particular bit location.

It is read from right to left as follows:

0_0_0_1_1_1 = 7 Binary
32 16 8 4 2 1 = 1+2+4 = 7 Decimal equivalent
As seen, this value of 7 would enable cores 0 1 and 2 (first, second and third cores on a 4 core system).

a '1' bit will enable the core, a '0' bit disables it.
Actual activity of cores can be checked through TaskManager. Keep in mind in general Windows OS runs hundreds of threads at the same time IL-2 runs.

A substantial part of IL-2 is written in Java which can use in excess of 100 threads. (source: Sun Microsystems) Shift-Tab opens the Java console in-game that's where all those white messages come from.

Bitmask: 00000 = Decimal 0
Processor affinity is off, and the load is distributed across all available processors.

Bitmask: 00001 = Decimal 1
Processor 1 selected. The process will only run on processor 1.

Bitmask: 00010 = Decimal 2
Processor 2 selected. The process will only run on processor 2.

Bitmask: 00011 = Decimal 3
Processors 1 & 2 selected. The load is distributed across both processors, effectively the same as setting 0 above for Dual cores.

Because 0 puts the load across all processors and 3 puts the load on processor 1 and 2, they are essentially the same thing for Dual core CPUs.

For Quad core CPUs you can use more values:

Bitmask: 00100 = Decimal 4
Processor 3 selected. The process will only run on processor 3.

Bitmask: 01000 = Decimal 8
Processor 4 selected. The process will only run on processor 4.

And any combo between 0 and 15, for example:

Bitmask: 00101 = Decimal 5
Processor 1 and 3 selected. The load is distributed across processor 1 and 3.

Bitmask: 01111 = Decimal 15
Processor 1, 2, 3, and 4 selected. The load is distributed across all processors, 1, 2, 3, and 4.






Hope you get it sorted.








.