Posts by Overtonesinger
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(Message 1763)
Posted 14 Sep 2013 by 
Overtonesinger
Post: SSE3 ver. rocks! It completes avg.in: 53 minutes on 3GHz AMD A8-3870K 8GB DDR3 @ 2262 MHz,SSE2 in 60 minutes. 98 min. on 1.6 GHz Intel i7 720QM, SSE2 in 101 min., "Period Search Application v101.10" (no SSE) in 206.48 min. 778.5 min on 1.6 Ghz Intel "Atom N270", "Period Search Application v101.10" (no SSE) in AMAZING 2075 minutes. (Does anyone from Asteroids-at-home have "INTEL C++ compiler / ICC ver.12" to make an Atom-SSE3 optimized version, please? I cannot find any up-to-date and optimized computations for my 2 Atom devices :) ) Android-apps: 842 min. on HTC One-V, 1 Ghz Qualcomm(Snapdragon) "ARMv7 Processor rev 2 (v7l)" 2072+ min. (computation ERROR at 85 percent!!! WU: http://asteroidsathome.net/boinc/workunit.php?wuid=6094290) on "POINT OF VIEW Mobii ProTab2 IPS 9.7", CPU "Cortex A8 1.2 GHz". Please, can someone try to make a "Cortex A8 ARMv7 Processor rev 2 (v7l)"-compatible version of the app ? I am afraid it might have no hardware-DOUBLE-PRECISION floating point instruction and it seems to emulate it really badly. But maybe there is some other way around it... ..... like a proper emulation written directly in the code? I dont know if it is possible... :-)[/url] |
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(Message 1735)
Posted 10 Sep 2013 by
Overtonesinger
Post: Thank you. BTW: Do mobile processors ARMv7 (v7 rev.2) have *DOUBLE* precision floating point instructions in their hardware??? I am surprised! :O - they must have, otherwise it would not be efficient and no sense in making Asteroids app for them. But it clearly runs on some hardware FPU, because 1 WU on 1 GHz ARMv7.2 CPU (Snapdragon type) is completed in less than 18 hours. :-) |
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(Message 1725)
Posted 9 Sep 2013 by
Overtonesinger
Post: SUPER! (mobile CPU i7 720QM, 8 threads at 1.6 GHz) --- ENG --- Searching a BOINC-app for my tablet - such that: It has maximum integer computations and minimal FPU computations from all those apps available for BOINC on Android. :-) Any advice, please? Thanx. ---------------- Česky: ---------------- Mám dotaz: Ve výpočtech Asteroids at Home aplikace pro Android: Převažují tam integer nebo FPU výpočty? Mám tablet, jehož ARM 1.0 GHz CPU má výrazně rychlejší int. a o 20 procent pomalejší hardwarové FPU (než můj ARM-CPU *TAKÉ* 1.0 GHz, ale v mobilu). Hledám pro něj tedy vhodnou aplikaci, která by měla co největší podíl integer výpočtů - ze všech dostupných BOINC projektů pro Android... :-) Děkuji! |
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