On Thu, Apr 9, 2015 at 8:32 PM, Esteban Lorenzano <[email protected]> wrote: > >> On 09 Apr 2015, at 20:10, volkert <[email protected]> wrote: >> >> Great story and great work. Really helpfull to get a feeling about the >> current "limits" of >> the Pharo Platform ... far away from my current data volume requirements, but >> good to know ... >> >> Thanks for sharing. >> >> BW, >> Volkert >> >> Am 09.04.2015 um 16:52 schrieb Serge Stinckwich: >>> Dear all, >>> >>> this is a small report about the RESILIENCE team using Pharo&Roassal >>> for the D4D datathon challenge: http://www.d4d.orange.com/en/home >>> >>> The idea was to use mobile network data from Senegal provided by >>> Orange company in order to solve some development problems. >>> >>> The amount of data provided by Orange was really huge, something like >>> 66 Gb: we have the number and the durations of calls between each pairs of >>> GSM >>> antennas in Senegal (1666 different antennas) and also some >>> information about the mobility of people. You can find more >>> information about the data here: >>> http://arxiv.org/abs/1407.4885 >>> >>> We try to extract some data from August 2013, because we know that >>> some floods occurs at that time in Dakar. Our main objective was to to >>> be able to visualise mobility and communications patterns with ROASSAL >>> to see if there is any differences before and after the floods. >>> >>> We had a lot of problems to solve in a short period of time :-) >>> >>> At the beginning, we couldn't open huge files with Pharo. Only open a >>> file that is around 3.4Go is impossible. Pharo says that the file does >>> not exist. >>> Thierry tells us that us that one must compile the VM with >>> -D_FILE_OFFSET_BITS=64. (the Cog VMs are also built with >>> -D_GNU_SOURCE). >>> Why this is not done by default ? > > no idea… probably because I don’t work in windows then this things escapes to > me :)
We use a Linux VM. -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/
