[Users] Cactus runs on Raspberry Pi

[Frank Loeffler]

For the HTML version, see http://cactuscode.org/media/news/Raspberry/


Cactus was ported to run on Raspberry Pis. These credit-card sized
computers run Raspbian, a fork of Debian, a wide-spread and supported
Linux distribution. Owing to the inherent portability of Cactus, the
port to Raspberry Pi was straightforward; however a few tweaks were
necessary due to the uncommon architecture (an ARMv6 32 bit core), which
is anticipated to be supported in the next release of Cactus.

Since Raspberry Pis are inexpensive and portable hardware, they provide
convenient tools for education. Though their clock rate is limited to a
mere 700 MHz with a current maximum supported memory of 512 MB, they
nevertheless are able to support Cactus runs for small-scale toy codes.

What has been demonstrated is a build of the Gauss release of the
Einstein Toolkit, successfully passing all but a few test suites
(apparently connected to HDF5 recovery in Carpet) on one Raspberry Pi
and a small "cluster" of two Raspberry nodes.

Building is straightforward: Simfactory now contains an optionlist
raspbian.cfg, which includes instructions and lists packages which
reduce build-time when installed. 

Frank Löffler

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