testing home -> Comcast server in MPLS
Ping: 29 ms
Down: 33.74 Mbps
Up: 4.21 Mbps

This is significantly higher than the previous test to servers in Chicago at speakeasy speed test.

https://sage.uwstout.edu:8000

Anyone can create an account (for now) and run Sage / Python / GAP / Maxima / etc. code through the browser. I’m testing the server in two classes this semester (Calculus & Analytic Geometry I and Modern Algebra I). I’m also trying to get other faculty into the game by leading an active learning type workshop on converting Maple projects to Sage. Here is the first demo of that:

https://sage.uwstout.edu:8000/home/pub/9/

Details: The Sage notebook server is running on brand new hardware, an HP server with 12 cores (24 threads) and 144 GB main memory. We’ve put Debian squeeze and Xen on it and we’re running several virtual machines: three different VMs for WebWork and one for Sage. So far the system is performing great.


Download Speed: 24180 kbps (3022.5 KB/sec transfer rate)
Upload Speed: 2138 kbps (267.3 KB/sec transfer rate)


More generally, the Single Cell Server code developed by Jason Grout (and others) can be used for GAP, PARI/GP, Python, R, etc..

Can you guess what sequence this is?


1
2
3
2^2
5
2 * 3
7
2^3
3^2
2 * 5
11
2^2 * 3
13
2 * 7
3 * 5
2^4
17
2 * 3^2
19
2^2 * 5
3 * 7
2 * 11
23
2^3 * 3
5^2
2 * 13
3^3
2^2 * 7
29
2 * 3 * 5
31
2^5
3 * 11
2 * 17
5 * 7
2^2 * 3^2
37
2 * 19
3 * 13
2^3 * 5
41
2 * 3 * 7
43
2^2 * 11
3^2 * 5
2 * 23
47
2^4 * 3
7^2
2 * 5^2
3 * 17
2^2 * 13
53
2 * 3^3
5 * 11
2^3 * 7
3 * 19
2 * 29
59
2^2 * 3 * 5
61
2 * 31
3^2 * 7
2^6

wget --mirror --convert-links --html-extension --no-parent -page-requisites URL

Thanks to this post for the idea.

The higher impact papers are:

1. Indications of Proton-Dominated Cosmic-Ray Composition above 1.6 EeV, The High Resolution Fly’s Eye Collaboration, Physical Review Letters, vol. 104 num. 16 Apr. 2010. [PDF]
2. First Observation of the Greisen-Zatsepin-Kuzmin Suppression, The High Resolution Fly’s Eye Collaboration, Phys.Rev.Lett.100:101101,2008, arXiv:astro-ph/0703099v2. [PDF]

The papers on detector calibration from 1999 – 2002 are ones I had a hand in writing directly.

All tests passed!
Total time for all tests: 20635.0 seconds


All tests passed!
Total time for all tests: 4078.1 seconds


Using 2 cores / 4 threads

Total time for all tests: 2118.7 seconds

I don’t know how many cores were being used here, at least 5-6 judging by the processes I saw running in top