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Discusses the need to improve the effectiveness of parallel codes to increase adoption of e-Infrastructure services for research.

Developing correct and efficient parallel code for research applications remains a challenging task that is being exacerbated by the increase in potential parallelism supported by modern computer architectures. The emergence of multi-core and multi-threaded CPUs means this has become an issue even in applications running on commodity hardware. The problem is even more pronounced in cluster and HPC systems.

"we’ve sat on the back of Moore’s Law for the last forty years and sort of expected [that] processors would get twice as fast every 18 months or so and that’s simply stopping. The approach of going down the multi-core route means that if you’re going to solve the computational problems of a decade’s time you’re not going to be able to do it on 100 or 1000 processors you’re going to be looking at 10,000 or 100,000 processors and frankly if you look at the code-base they don’t scale so the numerical tools for example that we have today need a thorough overhaul and that’s an enormous task. You know if I look at [a large-scale HPC service]alone I mean we’ve got some 20 codes on [it] in general purpose use in the chemistry area alone so I think there’s a real challenge there and it’s not just for the UK but how to move the code base forward to have algorithms that really meet 21st Century needs." (service provider)

Enablers

Collaborations between HPC experts and researchers as well as key enablers such as mathematicians can help to develop new computational codes that scale better to modern architectures. Where possible, these should be factored into reusable libraries that can be taken up across a range of disciplines but it may well be that the best way to parallelise code is application specific.

[We have a programme to] develop a set of numerical techniques targeted key application areas that will be designed to scale and then ways in which we can guide the compilers actually to get better performance out of these new codes [...]. More generally than that we’re engaged in specific research projects looking at specific codes or specific sets of codes for key research areas to try to solve the scaling problem and develop, you know, new techniques and the challenge actually of course is that the new techniques that we have to develop are radically different in some cases from the ones that we’ve had for the past 20 years because of the need to not simply look at one narrow slice of a problem but you need to look at the problem in their own [right] so if you’re designing an aircraft wing, in the past we’ve split it up in a way that you’d have one set of people or one set of codes looking at the structural integrity of the wing and another set of people and another set of codes looking at the airflow over the wing whereas actually you know that you want to combine them because different airflows could produce different strains on the wing and therefore different issues for structural integrity and so on and so forth so there is a lot more thrust towards inter-disciplinary working that we have to drag together and that just makes the computational task much harder." (service provider)

Questions & Answers

what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
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Source:  OpenStax, E-research community engagement findings. OpenStax CNX. Jun 09, 2009 Download for free at http://cnx.org/content/col10673/1.9
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