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optimized sources
_heinz:
Hi Jason,
her you see the output of ET I use to measure codepieces of two functions p1, p2
--------------------------------------------------------------------------------------------------------------------
ET v1.0 test seti
-------------------
Timer Frequency in:
Hz = 3579545
MHz = 3.57955
GHz = 0.00358
Start Time = 1080132967465 Ticks
Stop Time = 1080134441029 Ticks
Duration in Ticks = 1473564
Duration in seconds = 0.4116623760841
--------------------------------------
Start Time = 1080134443291 Ticks
Stop Time = 1080138377735 Ticks
Duration in Ticks = 3934444
Duration in seconds = 1.0991463998916
--------------------------------------
P1 = 1473564
P2 = 3934444
dif= 2460880
Solution:P1 is faster than P2
Press the Enter Key!
------------------------------------------------------------------------------------------------
so we see the success without running a test WU....
heinz
Jason G:
Cool , thanks for the links by PM. could be quite handy for the things I intend to be looking at soon.... but LOL, where is etimer.lib file that is discussed in the intel site ? The link at the end of the etimer article is giving me some 3d transform program files INTEAD :o , if I can't find it I probably should let Intel know their link is broken ....
[ LOL now they fixed it ! :D, maybe they read Lunatics]
_heinz:
maybe....we are one of the most accessed, now more than 22 000 ...... ;D
Jason G:
'Tis truly an Epical Thread :D.... But Wait there's more! ....
Using the timers I ran some big loop math array test pieces to establish the best optimisation configurations on my old p4 Northwood::
With everything else equal:
the xW sse2 setting I've been using all along = 14.15 secs (repeated runs to make sure)
the xN sse2 setting I wanted to test properly = 12.8 secs (repeated runs to make sure)
That makes xN builds nearly 10% faster on my old clunker with looping math code!
This means that:
The good news is I may already have found a way to acheive my 5 to 10% speed improvement goal for this machine! (without doing much at all.... Hmmm ...Better start thinking of a new goal! )
;D
Bad news is that I now have to go and rebuild the seti projects with my new settings to see if it will work ... and no time this week! :(
Surprise Surprise, a QxN build is faster on my Northwood :P
LOL
_heinz:
lol... make a copy of your current seti folder and set it parallel to the boinc folder...so you need not touch the old one.
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