New Multi-Threaded Pi Program - Faster than SuperPi and PiFast

[jcool]

Did some runs on your latest version mate... not the slowest CPU out there
It doesn't quite beat a Dual W5590, but it gets damned close for a single CPU
Just wish I could select 12 Threads, would probably net a better score.

[poke349]

Did some runs on your latest version mate... not the slowest CPU out there
It doesn't quite beat a Dual W5590, but it gets damned close for a single CPU
Just wish I could select 12 Threads, would probably net a better score.

Oh hey! A Gulfie!


There's no 12-thread option because a lot of the internal algorithms simply don't allow non-powers of two. It's inherent in the math.
So I'm forced to just round it up.

[jcool]

Oh hey! A Gulfie!

Nope.. it's a Westmere-EP (--> DP CPU)
Gulftowns are single QPI chips, like the upcoming Core i7 980 XE.

There's no 12-thread option because a lot of the internal algorithms simply don't allow non-powers of two. It's inherent in the math.
So I'm forced to just round it up.

I see.. oh well, I really hate math, so I can live with that

[poke349]

Nope.. it's a Westmere-EP (--> DP CPU)
Gulftowns are single QPI chips, like the upcoming Core i7 980 XE.

hmm... I thought all the dual-sockets ended in "-town".

Clovertown
Harpertown
Gainestown
Gulftown?


Also, since these dominate the single-socket categories, is it safe for me to update the records list on my webpage? They're ES and not yet retail, so... your call.

I see.. oh well, I really hate math, so I can live with that

haha

[jcool]

ES Samples have been circulating since September 2009 or so, I think I got my first one in October, so it's been a while. Retail launch of this particular CPU will be March 16th, so it's not that far off.
Include them if you like

You are right, Intel broke their consistent naming scheme for this one. While the whole LGA1366 32nm Lineup (Quads and Hexas) with Hardware AES Support falls under the "Westmere" family (Tick - Tock, Nehalem was Tick, Westmere is Tock), Gulftown is the codename for single QPI desktop parts, like Bloonmfield was for the i7's.
Westmere-EP is the successor of Gainestown, they were probably looking to put that in line with the later-to-arrive Westmere-EX (<-> Nehalem-EX/Beckton successor).

[poke349]

ES Samples have been circulating since September 2009 or so, I think I got my first one in October, so it's been a while. Retail launch of this particular CPU will be March 16th, so it's not that far off.
Include them if you like

You are right, Intel broke their consistent naming scheme for this one. While the whole LGA1366 32nm Lineup (Quads and Hexas) with Hardware AES Support falls under the "Westmere" family (Tick - Tock, Nehalem was Tick, Westmere is Tock), Gulftown is the codename for single QPI desktop parts, like Bloonmfield was for the i7's.
Westmere-EP is the successor of Gainestown, they were probably looking to put that in line with the later-to-arrive Westmere-EX (<-> Nehalem-EX/Beckton successor).

Funny, lol
Wiki says "Gulftown" will apply to both Core i7 9XX and Xeon 56xx.
But that's just wiki... lol

[jcmarfilph]

This Turion M520 should be as fast as T6600 or P8400 ^_^

[bonis62]

I understand you're not a native speaker.

Either you're being sarcastic, or you're completely missing the point...
That complexity is just part of the analysis of the algorithm.
It has nothing to do with 0 or NaN or anything hardware...

Basically I'm saying that (now, I'm just making these numbers up):

at 10,000,000 digits, it needs 100MB and 1 second
at 100,000,000 digits, it needs 2GB and 20 seconds
at 1 billion digits, it needs 50GB and 10 minutes
at 10 billion digits, it needs 5TB and 10 hours
at 100 billion digits, it needs 1000TB and 10 years
at 1 trillion digits, it needs infinite memory, and infinite time.

That's what I mean by blows up.

Basically, you get to the point where you have so many operations that no matter what you do, 53 bits of precision isn't enough, because roundoff error alone takes up 53 bits of precision.

option two:
completely missing the point

[Particle]

Looks like the swap bench will have to wait. They shipped me MAX3147RCs instead of MBA3147RCs.

[poke349]

Looks like the swap bench will have to wait. They shipped me MAX3147RCs instead of MBA3147RCs.

Sorry to hear that.

I still have a number of different things that need to be fixed/redone before the program is stable enough for beta-testing.

I'm probably just gonna release it as a public alpha... Alpha instead of Beta since it'll probably be the first in a series of successive optimizations - so there's gonna be a lot of changes to come... even after I release it.

[bonis62]

option two:
completely missing the point

hi, i dont know intel compiler.....

1) if you've tried the GCC compiler , it is much slower than the Intel compiler ?

2) for porting my code into Linux , Intel compiler work on linux ?

TY

[Qkjhfhaiguihfma]

hi, i dont know intel compiler.....

1) if you've tried the GCC compiler , it is much slower than the Intel compiler ?

2) for porting my code into Linux , Intel compiler work on linux ?

TY

1) yes!
2) yes, i think it's free for non-commercial use.

[mattkosem]

Here's what I get with HT on at 4.4.

--Matt

[poke349]

Here's what I get with HT on at 4.4.

--Matt

Wow, a whole second with a lower clock...

[poke349]

Looks like I've been beat pretty well now...

500m Pi:
TPi v0.9.2: 554 seconds
y-cruncher v0.5.2: 588 seconds



Process Explorer shows TPi as not using a lot of CPU, especially towards the end of the computation... and yet it is still so fast... lol

TPi:
Series + Division: 410.28
Square Root: 23.861
Final Multiply: 20.467
Base Conversion: 100.068
Total: 554 seconds

y-cruncher:
Series + Division: 435.572
Square Root: 15.695
Final Multiply: 9.008
Base Conversion: 128.166
Total: 588 seconds

y-cruncher may have faster arithmetic, but it doesn't mean anything if I'm not using the formula properly...

If only I'm a lot better at math...

[mk_dir]

Here's a dual Gainestown EP config; dual Xeon E5520 @ Asus Z8NR-D12 with 24GB DDR3-1066Mhz ECC RAM (stock clocks).
I'm using the y-cruncher v.0.4.4.7762b version. Some Large Benchmarks:
(All RAM)

500,000,000 digits (and CPU-z):



1,000,000,000 digits:



2,500,000,000 digits:



And here a 5,000,000,000 digits resluts:



A quick run too:



Regards

[poke349]

Here's a dual Gainestown EP config; dual Xeon E5520 @ Asus Z8NR-D12 with 24GB DDR3-1066Mhz ECC RAM (stock clocks).
I'm using the y-cruncher v.0.4.4.7762b version. Some Large Benchmarks:
(All RAM)

500,000,000 digits (and CPU-z):

1,000,000,000 digits:

2,500,000,000 digits:

And here a 5,000,000,000 digits resluts:

A quick run too:

Regards

WOW
5b...
The first of the memory monsters... (excluding myself...)

[mk_dir]

WOW
5b...
The first of the memory monsters... (excluding myself...)

Thanks, I'm testing some new server hardware and this benchmark got my attention. Full multi-threaded and a masive RAM eater.

[poke349]

Thanks, I'm testing some new server hardware and this benchmark got my attention. Full multi-threaded and a masive RAM eater.

Another update on v0.5.2:

The code is done. And I've compiled the build that will "most likely" be the one that I release.
It's taken quite a while because Advanced Swap Mode required a fairly large program-design restructuring at the top level - which more or less broke half the existing features.
I didn't get everything working again until yesterday. Not to mention that I had a ton of midterms over the past 2 weeks...

I have one test I wanna do before I release it, but I can't start it until my Core i7 rig finishes a VERY LARGE test/task that it's doing right now. (it's almost done...)

In the meantime, here's a small screenie of the option selection menu for Advanced Swap Mode:



This will be the final test that I wanna run before I release the program.
ETA: 2 - 5 days on my Core i7 rig - which has gotten a bit of an upgrade for this purpose...

[poke349]

Version 0.5.2 is out!!!

The greatest feature is of course: Advanced Swap Mode.

This feature is accessible in the "Custom Compute a Constant" option.
It's under "Computation Mode". But you must select at least 100,000,000 digits for the option to appear.


Now for starters:

Let's see who can beat this?



(click to enlarge)


Aside from a couple of large computations (including a new world record of 500 billion digits of e), this version is largely untested.
So please let me know of any bugs or errors you find.


I may start a new thread for this - this time, for hard drive benchmarking...

[jcmarfilph]

umm where is the download link for version 0.5.2?

[poke349]

umm where is the download link for version 0.5.2?

The same place as the old link. Did you refresh?
I literally added it like a hour ago... So it might still be cached.

[jcmarfilph]

Very nice improvement

[Movieman]

[poke349]

Very nice improvement

Only AMD gets that much improvement. Core i7 doesn't even come close.
I haven't done any small Core 2 benches yet, so I don't know how much it gets. But I don't think it gets as much as K10 either...

Are you telling me you've got as many drives as cores?