How to use HPC resources

Dear All,

it is time to decide how to use our grant.

As I said we have

> - 250.000 core-hours on Fermi, CINECA, Italy, a [BlueGene/Q](http://www.hpc.cineca.it/content/ibm-fermi-user-guide#systemarchitecture) system
> - 100.000 core-hours on MareNostrum, BSC, Spain, a [Intel Sandy Bridge](https://www.bsc.es/marenostrum-support-services/mn3) cluster

We will have 6 months to use these resources (I think starting from the date when we activate our accounts).

I am preparing a 2D (hopefully 3D) FOODIE test that I hope will be able to exploit the above resources. I have not a direct experience on MareNostrum, whereas I have used Fermi: the minimum-size job is about thousand of cores (in debug-smallpar queues, that are suitable for our scaling tests, should be smaller), thus the tests could not be too small. In particular we 1GB/core of RAM on Fermi and [2,4,8]GB/core on MareNostrum.

I would like to know if you (all of you, not only the ones directly involved into the paper for example) have some proposal on how to use these resources at best.

In the following a brief summary of the tests I am preparing is reported, I am sorry, but my background is gas-dynamic, I am essentially an _inviscid (sub)man_ :smile:
### 2D Riemann Problem(s)

_Classical_ tests, as reported in the interesting [Kurganov and Tadmor](http://www.cscamm.umd.edu/tadmor/pub/central-schemes/Kurganov-Tadmor.NMPDEs02.pdf) paper, e.g.

### Shock Diffraction

Very classical test, e.g. Mach 2 [shock diffraction](ftp://ftp.lstc.com/outgoing/inaki/docs/pdf_cese/Shock_diffraction.pdf) on 90° corner, e.g.

### Wind Tunnel Step

Even more classical ( :smile: ), the Mach 3 flow into a _stepped_ [wind tunnel](ftp://ftp.lstc.com/outgoing/inaki/docs/pdf_cese/Tunnel_Step.pdf), e.g.