I'd be interested. On Tue, Jul 5, 2011 at 12:19 PM, Jeff Eastlack <[email protected]> wrote:
> Hi All, > Thanks for the replys! I am using a ARM ported version of Ubuntu 10.10 > running on a Cortex-A9. > The community has done a good job with porting many packages to the ARM > ISA. FFTW was easily installed on my system using apt-get. > I think the end goal to this effort is to understand the limitations of > mobile chips (in particular the memory hierarchy), and then work on an > Android port with BOINC and the other applications. > The later versions of Android support native C/C++ compiled code vs. Java > on the older releases. This allows us to exploit HW accelerators such as the > Vector floating point unit. > So right now I am trying to profile a few other applications to get a > better mix. Sensitive economics dictate the features of the embedded > processor so things like Cache memory is a very expensive commodity. However > the ARM Cortex-A9 has a L2 size range up to 4MB which is very respectable > and cache coherency to up to 4 cores, but most licences don't include that > much. > Right now it appears with SETI that 512k L2 is having issues with locality > but I still need to analyze and experiment further by running on a system > that has a larger cache and extracting data from performance counters on > things like L2 misses, etc. > I can send out some slide decks on general performance and comparisons to > x86 if anyone is interested? > Thanks, > > Jeff > --- On Tue, 7/5/11, Raistmer <[email protected]> wrote: > > From: Raistmer <[email protected]> > Subject: Re: [boinc_dev] ARM project port > To: "Bernd Machenschalk" <[email protected]>, "robert miles" < > [email protected]> > Cc: [email protected] > Date: Tuesday, July 5, 2011, 1:23 PM > > SETI requires FFTW or similar FFT library too. Original poster claimed he > looks on SETI@home already. > Interesting, what about FFT indeed? > > ----- Original Message ----- > From: Bernd Machenschalk > To: robert miles > Cc: [email protected] > Sent: Monday, July 04, 2011 6:12 PM > Subject: Re: [boinc_dev] ARM project port > > > On 04.07.11 07:37, robert miles wrote: > > I've found a reference to where to get the source code for Einstein@Home > > applications: > > > > http://einstein.phys.uwm.edu/license.php > > This requires compiling gsl, fftw and the whole lalsuite for ARM, which I > suspect to be a pain to get working. > > Also too, the resulting application (gravitational wave search) requires a > significant amount of disk space to run, and the tasks would (initially) > cause quite some download traffic. I don't think that this application is > well suited for mobile devices. > > Is there a reasonably fast FFT(W) implementation for ARM? We might be able > to find some different application. > > Best, > Bernd > > _______________________________________________ > boinc_dev mailing list > [email protected] > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. > _______________________________________________ > boinc_dev mailing list > [email protected] > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. > _______________________________________________ > boinc_dev mailing list > [email protected] > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. > > _______________________________________________ boinc_dev mailing list [email protected] http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev To unsubscribe, visit the above URL and (near bottom of page) enter your email address.
