veyepar: ROFL: a functional Python dialect for science

Author(s):	Jonathan Riehl
Location	106
Date	jul Wed 18	Days Raw Files
Start	15:55	First Raw Start	15:17
Duration	20:00	Offset	0:37:43
End	16:15	Last Raw End	16:20
Chapters	00:00 0:22:27
Total cuts_time	24 min.

raw-playlist raw-mp4-playlist encoded-files-playlist host archive public tweet mp4 svg png

assets release.pdf ROFL_a_functional_Python_dialect_for_science.json
logs
Admin: episode episode list cut list raw files day marks day marks day image_files

State:

Locked:

clear this to unlock

Locked by:

user/process that locked.

Start:

initially scheduled time from master, adjusted to match reality

Duration:

length in hh:mm:ss

Name:

Video Title (shows in video search results)

Emails:

email(s) of the presenter(s)

Released:

has someone authorised pubication

Normalise:

Channelcopy:

m=mono, 01=copy left to right, 10=right to left, 00=ignore.

Thumbnail:

filename.png

Description:

markdown

jon.riehl@resilientscience.com

Current parallel programming models leave a lot to be desired and fail
to maintain pace with improvements in hardware architecture.  For many
scientific research groups these models only widen the gap between
equations and scalable parallel code.  The Resilient Optimizing Flow
Language (ROFL) is a data-flow language designed with the purpose of
solving the problems of both domain abstraction and efficient
parallelism.  Using a functional, declarative variant of the Python
language, ROFL takes scientific equations and optimizes for both
scalar and parallel execution.

ROFL is closely tied to Python and the SciPy libraries.  ROFL uses
Python expression syntax, is implemented in Python, and emits
optimized Python code.  ROFL's implementation in Python allows ROFL to
be embedded in Python.  Using Python as a target language makes ROFL
extensible and portable.  By removing imperative loop constructs and
focusing on integration with the NumPy and SciPy libraries, ROFL both
supports and encourages data parallelism.

In this presentation, we introduce the ROFL language, and demonstrate
by example how ROFL enables scientists to focus more on the equations
they are solving, and less on task and data parallelism.

Comment:

production notes

<?xml version='1.0' encoding='UTF-8'?>
<ns0:entry xmlns:ns0="http://www.w3.org/2005/Atom"><ns0:category scheme="http://schemas.google.com/g/2005#kind" term="http://gdata.youtube.com/schemas/2007#video" /><ns0:category label="Education" scheme="http://gdata.youtube.com/schemas/2007/categories.cat" term="Education" /><ns0:category scheme="http://gdata.youtube.com/schemas/2007/keywords.cat" term="enthought" /><ns0:category scheme="http://gdata.youtube.com/schemas/2007/keywords.cat" term="scipy_2012" /><ns0:category scheme="http://gdata.youtube.com/schemas/2007/keywords.cat" term="HPC" /><ns0:category scheme="http://gdata.youtube.com/schemas/2007/keywords.cat" term="JonathanRiehl" /><ns0:id>http://gdata.youtube.com/feeds/api/videos/OF3CYqj4H9U</ns0:id><ns0:author><ns0:name>NextDayVideo</ns0:name><ns0:uri>https://gdata.youtube.com/feeds/api/users/NextDayVideo</ns0:uri></ns0:author><ns0:content type="text">Jonathan Riehl
Current parallel programming models leave a lot to be desired and fail
to maintain pace with improvements in hardware architecture.  For many
scientific research groups these models only widen the gap between
equations and scalable</ns0:content><ns0:updated>2012-08-31T20:31:23.000Z</ns0:updated><ns0:published>2012-08-31T20:31:23.000Z</ns0:published><ns1:comments xmlns:ns1="http://schemas.google.com/g/2005"><ns1:feedLink countHint="0" href="https://gdata.youtube.com/feeds/api/videos/OF3CYqj4H9U/comments?client=NextDayVideo" rel="http://gdata.youtube.com/schemas/2007#comments" /></ns1:comments><ns1:group xmlns:ns1="http://search.yahoo.com/mrss/"><ns1:keywords>enthought, scipy_2012, HPC, JonathanRiehl</ns1:keywords><ns1:description type="plain">Jonathan Riehl
Current parallel programming models leave a lot to be desired and fail
to maintain pace with improvements in hardware architecture.  For many
scientific research groups these models only widen the gap between
equations and scalable</ns1:description><ns1:title type="plain">ROFL: a functional Python dialect for science</ns1:title><ns2:duration seconds="0" xmlns:ns2="http://gdata.youtube.com/schemas/2007" /><ns1:content duration="0" expression="full" isDefault="true" medium="video" type="application/x-shockwave-flash" url="https://www.youtube.com/v/OF3CYqj4H9U?version=3&amp;f=user_uploads&amp;c=NextDayVideo&amp;d=Aarb2r5skm2_yNTuKEinXdAO88HsQjpE1a8d1GxQnGDm&amp;app=youtube_gdata" ns2:format="5" xmlns:ns2="http://gdata.youtube.com/schemas/2007" /><ns1:thumbnail height="360" time="00:00:00" url="http://i.ytimg.com/vi/OF3CYqj4H9U/0.jpg" width="480" /><ns1:thumbnail height="90" time="00:00:00" url="http://i.ytimg.com/vi/OF3CYqj4H9U/1.jpg" width="120" /><ns1:thumbnail height="90" time="00:00:00" url="http://i.ytimg.com/vi/OF3CYqj4H9U/2.jpg" width="120" /><ns1:thumbnail height="90" time="00:00:00" url="http://i.ytimg.com/vi/OF3CYqj4H9U/3.jpg" width="120" /><ns1:category label="Education" scheme="http://gdata.youtube.com/schemas/2007/categories.cat">Education</ns1:category><ns1:category scheme="http://gdata.youtube.com/schemas/2007/developertags.cat">enthought</ns1:category><ns1:category scheme="http://gdata.youtube.com/schemas/2007/developertags.cat">scipy_2012</ns1:category><ns1:category scheme="http://gdata.youtube.com/schemas/2007/developertags.cat">HPC</ns1:category><ns1:category scheme="http://gdata.youtube.com/schemas/2007/developertags.cat">JonathanRiehl</ns1:category><ns1:player url="https://www.youtube.com/watch?v=OF3CYqj4H9U&amp;feature=youtube_gdata_player" /></ns1:group><ns0:title type="text">ROFL: a functional Python dialect for science</ns0:title><ns1:control xmlns:ns1="http://purl.org/atom/app#"><ns1:draft>yes</ns1:draft><ns2:state name="processing" xmlns:ns2="http://gdata.youtube.com/schemas/2007" /></ns1:control><ns0:link href="https://www.youtube.com/watch?v=OF3CYqj4H9U&amp;feature=youtube_gdata" rel="alternate" type="text/html" /><ns0:link href="https://gdata.youtube.com/feeds/api/videos/OF3CYqj4H9U/responses?client=NextDayVideo" rel="http://gdata.youtube.com/schemas/2007#video.responses" type="application/atom+xml" /><ns0:link href="https://gdata.youtube.com/feeds/api/videos/OF3CYqj4H9U/ratings?client=NextDayVideo" rel="http://gdata.youtube.com/schemas/2007#video.ratings" type="application/atom+xml" /><ns0:link href="https://gdata.youtube.com/feeds/api/videos/OF3CYqj4H9U/complaints?client=NextDayVideo" rel="http://gdata.youtube.com/schemas/2007#video.complaints" type="application/atom+xml" /><ns0:link href="https://gdata.youtube.com/feeds/api/videos/OF3CYqj4H9U/related?client=NextDayVideo" rel="http://gdata.youtube.com/schemas/2007#video.related" type="application/atom+xml" /><ns0:link href="https://gdata.youtube.com/feeds/api/users/nextdayvideo/uploads/OF3CYqj4H9U?client=NextDayVideo" rel="self" type="application/atom+xml" /><ns0:link href="https://gdata.youtube.com/feeds/api/users/nextdayvideo/uploads/OF3CYqj4H9U?client=NextDayVideo" rel="edit" type="application/atom+xml" /></ns0:entry>