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.

Internet Security Threat Report 2014

More from The Register

next story
The cloud that goes puff: Seagate Central home NAS woes
4TB of home storage is great, until you wake up to a dead device
Azure TITSUP caused by INFINITE LOOP
Fat fingered geo-block kept Aussies in the dark
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
Intel offers ingenious piece of 10TB 3D NAND chippery
The race for next generation flash capacity now on
Want to STUFF Facebook with blatant ADVERTISING? Fine! But you must PAY
Pony up or push off, Zuck tells social marketeers
Oi, Europe! Tell US feds to GTFO of our servers, say Microsoft and pals
By writing a really angry letter about how it's harming our cloud business, ta
SAVE ME, NASA system builder, from my DEAD WORKSTATION
Anal-retentive hardware nerd in paws-on workstation crisis
prev story

Whitepapers

Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
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.
The Heartbleed Bug: how to protect your business with Symantec
What happens when the next Heartbleed (or worse) comes along, and what can you do to weather another chapter in an all-too-familiar string of debilitating attacks?
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.