C41.00 Observation Thread

Akos Fekete
Akos Fekete
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Topic 191131

C41.00 was made for old processors. (Pentium, Pentium-II, K5, K6, etc.)

fantasyworld
fantasyworld
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C41.00 Observation Thread

Sorry
after i doenload the alb_C4100.zip
my PC tell me that it is a broken file
the file size about 1020KB?? (is so big ??)

Akos Fekete
Akos Fekete
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RE: Sorry after i doenload

Message 29331 in response to message 29330

Quote:
Sorry
after i doenload the alb_C4100.zip
my PC tell me that it is a broken file
the file size about 1020KB?? (is so big ??)

Thanks. The zipped file was wrong.
Rezipped one is uploaded.

cmds
cmds
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RE: C41.00 was made for old

Quote:
C41.00 was made for old processors. (Pentium, Pentium-II, K5, K6, etc.)

My AMD-K6 400MHz don´t like the C41.
On 1407 WUs

C41 = 64,283.27 s
D40 = 56,740.65 s

I changed back to D40

Chris
Thank you for your excellent work

*Die Signatur befindet sich aus technischen Gründen auf der Rückseite dieses Beitrages!*

Akos Fekete
Akos Fekete
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RE: RE: C41.00 was made

Message 29333 in response to message 29332

Quote:
Quote:
C41.00 was made for old processors. (Pentium, Pentium-II, K5, K6, etc.)
My AMD-K6 400MHz don't like the C41.

It likes, but you don't. :)

Probably your K6 is a K6-2 or K6-III because it's able to execute 3DNow! instructions.

Best,
Akos

AnRM
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Hi Akosf,...we have an older

Hi Akosf,...we have an older 400MHz Pentium-II IBM laptop running Win98 and the figures are as follows: C40=41422 sec...C41.00=37372sec. That's a 10% increase (over one hour less!)in productivity. It has validated OK as well. Your genius has done it again! Thanks for keeping the older machines current....Cheers, Rog.

Knorr
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RE: My AMD-K6 400MHz

Message 29335 in response to message 29332

Quote:


My AMD-K6 400MHz don�t like the C41.
On 1407 WUs

C41 = 64,283.27 s
D40 = 56,740.65 s

I changed back to D40

Chris
Thank you for your excellent work

The C41 was never ment to be faster than D40. C41 is for the processors, which doens't support SSE or 3DNow!

cmds
cmds
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RE: RE: RE: C41.00 was

Message 29336 in response to message 29333

Quote:
Quote:
Quote:
C41.00 was made for old processors. (Pentium, Pentium-II, K5, K6, etc.)
My AMD-K6 400MHz don't like the C41.

It likes, but you don't. :)

Probably your K6 is a K6-2 or K6-III because it's able to execute 3DNow! instructions.

Best,
Akos


I like all Alberts from Hungary :-)

You are right, it is a K6 with 3DNow, was my mistake, sorry.
Model/Typ/FSB (MHz)/L1-Cache
8/K6-2 400 AFQ/66/100/32 kByte + 32 kByte

http://www.elektronik-kompendium.de/sites/com/0406071.htm
Sorry for the German site

Best Wishes and Happy compiling

Chris

*Die Signatur befindet sich aus technischen Gründen auf der Rückseite dieses Beitrages!*

archae86
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I ran a controlled test using

I ran a controlled test using the same short Work Unit I've used for previous testing.

Yes, I know akosf did not suggest C41.00 for SSE-capable machines, but given some of the odd architecture dependent results I thought an extra data point might be of use:

The short Einstein result was r1_0265.5_2133_S4R2a_0) and I ran it on my Gallatin (Northwood-descended 2M L3 cache--the first P4 EE).

hyperthreaded, with the other BOINC job also an Einstein job:

S40.12 2345 seconds
S40.04 1933 seconds
C41.00 2486 seconds

Mostly this states again just how surprisingly badly S40.12 works on this machine--nearly as long an execution time as C41.00, which is not even using an SSE capability.

tahanko
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On my computer - 300MHz

On my computer - 300MHz Pentium is c41.00 12% faster than c40.
great work akosf - thanks

Akos Fekete
Akos Fekete
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RE: On my computer - 300MHz

Message 29339 in response to message 29338

Quote:
On my computer - 300MHz Pentium is c41.00 12% faster than c40.
great work akosf - thanks

That sounds well.

I put a modified look-up table handling into C41.01, because I realized that my previous codes have a clumsy part that reduces the performance.

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