GPU performance database and speed contest

[fangq]

Create and maintain an online GPU performance database by allowing users to submit timing info to a list of standardized benchmarks.

This requires:

[x] make MCXLAB aware of hardware configurations (similar to mcx -L)
[x] develop a CGI program on the MCX's web server to accept user contributed benchmark submissions
[x] write a matlab script to benchmark the GPU using MCX kernels and a standardized problem
[x] use urlread() to post the timing info and the hardware info to MCX's website
[x ] compile the results, rank by speed, and dynamically update

[fangq]

Step 1 is now completed:

[x ] make MCXLAB aware of hardware configurations (similar to mcx -L)

commit log:

https://sourceforge.net/p/mcx/svn/336
https://sourceforge.net/p/mcx/svn/335

[fangq]

Steps 1-4 are completed

096ce82
e71f4c7
2891fe3

[fangq]

this task is completed. The MCX GPU contest page is now open for business
http://mcx.space/gpubench/

please go ahead and share your results! let's get the list growing longer and longer.