Posts by VictordeHollander
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1) Message boards : News : New optimized versions for SSE3 released (Message 1532)
Posted 19 Aug 2013 by VictordeHollander
Do you have some antivirus installed?


Yes, I do. AVG Antivirus 2013
2) Message boards : News : New optimized versions for SSE3 released (Message 1512)
Posted 18 Aug 2013 by VictordeHollander
I've a WU with an error, maybe useful:

http://asteroidsathome.net/boinc/result.php?resultid=10081386
3) Message boards : Number crunching : Harlan is a high level language for general purpose GPU computing (Message 1377)
Posted 11 Jul 2013 by VictordeHollander
Zarck posts the same messages on all BOINC projects fora. Not very constructive as he is well aware CUDA and OpenCL are used by projects that have support for GPUs. I don't think he understands the difficulty in writing a BOINC app for the CPU, let alone GPU apps. GPU apps are much more difficult, because of:
1. programming languages (CUDA/OpenCL)are less frequently used than C/C++
2. parallelism of GPUs
3. different GPU architectures and their optimizations
4. missing and/or broken libraries (AMDs FFT library for instance)
5. lack of support by AMD/nVidia
4) Message boards : News : Releasing Android application for ARM processors (Message 1133)
Posted 17 Apr 2013 by VictordeHollander
@Ray_GTI-R
My ODROID-U2 is much slower than yours, how did you configure yours?
It is taking 18 hours to finish 4 concurrently!

Mine is running the Android 4.1.1 (1.5 beta from the hardkernel website) with nativeboinc and No-frills CPU Control to prevent it from lowering clocks.
5) Message boards : News : Releasing Android application for ARM processors (Message 981)
Posted 11 Mar 2013 by VictordeHollander
HTC Desire HD (which is quite an old phone, october 2010)
ARM chip: Qualcomm Snapdragon S2 MSM8255 @1.0 GHz
68,749 sec = ~19 hours

Not very fast, but it uses very little power, something like 2-3 Watt.
So 19hours * 0.003KW = 0.057KWh for a WU

Compared to my 2500k @4.0 GHz that takes 1.5 hours, but it can do 4WUs at the same time. I estimate it uses something like 150W.
1.5hours * 0.150KW / 4WUs = 0.056KWh for a WU

In terms of energy efficiency they are roughly comparable. I think new smart-phones with dual or quad cores (@ higher GHz) will probably be even more energy efficient. On the other hand, Ivy Bridge is also ~20% more energy efficient than Sandy Bridge.




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