Feeds

Coders tool up for 10 petaflop Blue Waters super

supercomputer

Beginner's guide to SSL certificates

The National Center for Supercomputing Applications (NCSA) at the University of Illinois has published an interview with professor Laxmikant Kale, who is helping scientists tune their applications for the 10 Petaflop Blue Waters supercomputer that will come online sometime in 2011.

That's no small problem since the hardware doesn't yet exist.

The distinguishing feature of Charm++ and Adaptive MPI is that the programmer does not have to worry about the number of processors, the programmer doesn't write to the processors. Instead they break the simulation into data and work units, and then the runtime system assigns those to the processors. This gives the system flexibility to deal with issues like dynamic load balancing and automatic fault tolerance, without the programmer having to do anything about it.

For a machine as big as Blue Waters, doing an accurate code simulation would simply take too long on conventional hardware. Instead, Kale helps users run an emulation and record all the dependencies between computation blocks and messages. This allows them to identify bugs in a program that appear only at scale.

Read the full story.

This article was first published at Inside HPC.

Choosing a cloud hosting partner with confidence

More from The Register

next story
Azure TITSUP caused by INFINITE LOOP
Fat fingered geo-block kept Aussies in the dark
NASA launches new climate model at SC14
75 days of supercomputing later ...
Yahoo! blames! MONSTER! email! OUTAGE! on! CUT! CABLE! bungle!
Weekend woe for BT as telco struggles to restore service
You think the CLOUD's insecure? It's BETTER than UK.GOV's DATA CENTRES
We don't even know where some of them ARE – Maude
DEATH by COMMENTS: WordPress XSS vuln is BIGGEST for YEARS
Trio of XSS turns attackers into admins
Cloud unicorns are extinct so DiData cloud mess was YOUR fault
Applications need to be built to handle TITSUP incidents
BOFH: WHERE did this 'fax-enabled' printer UPGRADE come from?
Don't worry about that cable, it's part of the config
Astro-boffins start opening universe simulation data
Got a supercomputer? Want to simulate a universe? Here you go
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Getting ahead of the compliance curve
Learn about new services that make it easy to discover and manage certificates across the enterprise and how to get ahead of the compliance curve.