The collected works of hazelden

Hi. I recently purchased a used SGI O2 and would love to try pjcap with it to capture high quality video. The link appears broken. Is there an active URL where I could download a copy?

Thanks,
Andrew Hazelden

Thanks! I really appreciate getting a copy of pjcap.

Regards,
Andrew Hazelden

vetal wrote: Is it possible to capture raw video and sound simultaneously?

Looking over the command line options for pjcap it looks like the current version only records video. You will have to record and sync up the audio separately from the video.

vishnu wrote: ...Why isn't the "report to moderators" function enabled here at nekochan? Are we that trustworthy of a group?

Vishnu,

If you are into self-reporting, the report button is to the left of the quote button on every nekochan message. The report button has a small triangle shaped icon with a red exclamation mark inside it. You can choose to report questionable links, advertising related posts, or off topic messages.

Cheers,
Andrew

Here is a screenshot that shows the report icon:

guardian452,

It looks like my nekochan "User Control Panel" board style was set to use the prosilver style and your screenshot uses the subsliver2 style. The funny thing is I don't remember changing any of those settings on my account.

Cheers,
Andrew

P.S. I would love to see some screenshots of Alias Studio Paint working with NURBS patch surfaces.

Another node based image editor from the mid-to-late 90's was Wavefront Composer that was later renamed to Maya Composer.

Hi tomvos.

I'm sure Mac OS XI 11 will offer a revolutionary idea of getting rid of files and storing everything in Newton style soups .

Andrew

tomvos wrote: Well, it's kinda OK-ish. I did not stumble over really a nasty bug yet. Emacs-24.3.1 (though Apple still bundles an antique emacs 22.1.1) works, Lisp works, Java7 works, VMWare Fusion 5 works ... even Shake still works fine. But there is no new feature where I could say: “Boy, how could I use an OS without this feature?”

But then, the new Tags feature is a step backward in usability — at least in my opinion. I liked the usage of color tints in the old Mac OS 9 days very much. I got used to the coloured labels instead of the coloured icons which returned with Mac OS X 10.3.

(Mac) OS X 10.9 uses colours for labels and for tags. Which means that a file can have several colours at the same time. So they put coloured dots before the file. Well, ... personally I don't like it. Now I have a lot of coloured dots in my Finder and a hard time to quickly visualized a file's context.



Why does OS X have such a mighty quartz display system when Apple does not use it to tint some icons?

I thought the best way to prepare an existing GNU C program for use with a "real" C compiler was to run this command on the development folder first:

This step fixes most of the GCCisms that are present in the source code.

As part of my 2014 Winter Warmup RetroChallenge project I thought it would be fun to compile cpuminer for IRIX and see how my trusty old SGI O2 would work at Litecoin mining.



Download
If you are curious to benchmark your own system you can grab an IRIX 6.5 copy of cpuminer here:
irix-cpuminer.zip

Benchmarks
Here is a graph with the results from my systems:


For comparison I tested the same cpuminer code on a few computers in my house:

• 2008 Apple Mac Pro Xeon - 8 core 3.2GHz System (25.6 GHz) = 8 threads x 4.78 khash/s
• 2006 HP DC5750 Desktop AMD Athlon 64 X2 - 2 core 2.1 Ghz (4.2Ghz) = 2 threads x 1.6 khash/s
• 2013 Raspberry Pi ARM 700 MHz = 0.33 khash/s
• 1996 SGI O2 195 MHz MIPS R10K = 0.08 khash/s

Installation
Step 1. Install the required Nekoware library: neko_curl-7.19.7.tardist

You can get the nekoware tardist files from the primary mirror:
http://nekoware.dustytech.net/index.php?path=current/

I ended up adding the following Nekoware compiled packages to my system so I could develop and run cpuminer:

• neko_curl-7.19.7.tardist
• neko_cyrus_sasl-2.1.22.tardist
• neko_db4-4.4.20.tardist
• neko_gawk-3.1.5.tardist
• neko_gmp-4.2.1.tardist
• neko_krb5-1.8.tardist
• neko_libidn-0.5.4.tardist
• neko_openldap-2.3.26.tardist
• neko_openssl-0.9.8x.tardist
• neko_readline-6.1-4.tardist
• neko_unixodbc-2.2.10.tardist

Step 2. Give the minerd executable permissions


Step 3. The minerd program should be copied to the /usr/local/bin folder.


Step 4. Launch minerd with the stratum server URL and login info.


Notes
For some reason the IRIX compiled version of minerd only accepts the single dash version of arguments. This means you can use the -o and -O options to provide the server path and login details.

I've only got GCC installed on my SGI O2. If someone wants to provide ssh access to an IRIX box with MIPSpro installed I'm willing to compile an optimized version of cpuminer.

Yes, assuming it is possible. One can only try their best when fighting with GCCisms in code.

Vladio wrote: I've been playing around with a little side project and have hit a minor roadblock, so to speak. I have an emitter emitting blob particles onto an ocean surface in Maya 2013 that are getting clipped out on the higher parts of the ocean.

Here are a few ideas off the top of my head:

• You could try setting up a few render layers and render the particles separately from the ocean surface and composite them in After Effects. On the blobby particle render layer, a black hole matte could be used to punch out the outline of the boat hull from the particles.
  
• Another option would be to try and increase the tessellation on the ocean surface for a more accurate wave boundary.
  
• A final option would be to look at the $99 copy of Realflow learning edition and switch to a Realwave ocean surface and Realflow emitted spray that is rendered in Maya.

I have a question for the HPC computing people on Nekochan.

Does anyone have an idea on the price of 3M Novec dielectric liquid fluid? I'm interested in the idea of doing a liquid immersion cooling experiment on a PC and would like to get a ballpark idea of the cost for the fluid before I call any 3M sales guys and try to buy enough to fill a small fishtank.

This was inspired by looking an article on ITWORLD Intel and SGI test full-immersion cooling for servers and from looking at the work done by http://www.iceotope.com/

Here are a few video clips from Youtube / Vimeo that show the OBI Open Bath Immersion cooling process. It's pretty amazing to see the Novec 7000 fluid boiling and circulating over the motherboards at low temperatures like 34°C. The process works without any aluminium heatsinks or fans mounted on the CPUs.

Immersion Cooling with 3M Novec Engineering Fluids
https://www.youtube.com/watch?v=a6ErbZtpL88

Boiling Liquid Submersion Cooling Computer
https://www.youtube.com/watch?v=Z_X_hgtlJpA

Immersions-Cooled Server Cluster
https://www.youtube.com/watch?v=NymeDU96pac

Server Demo Part I
https://www.youtube.com/watch?v=nppkJbcKUnw

Novec 7000 Based HFE cooling to improve efficiency of servers
http://vimeo.com/37127378

Hi robespierre.

robespierre wrote: Ah, I thought you meant Novec 1230, which is entirely different (it is a perfluoroketone). the HFE Novec 7000 is available in 1 gal bottles for about $300.

Thanks for your responses to my questions and the pricing info for a bottle of Novec 7000 fluid. It's pretty amazing to think a 55 gallon barrel of the stuff would cost ~$17,000!

The Novec fluid has really interesting physical properties. When a circuit board is extracted from the Novec liquid it comes out clean and dry which would make it easier to service a computer module compared to cleaning up a component saturated with mineral oil. The open bath immersion cooling system should become more common in the HPC market when higher density systems are deployed with even greater cooling requirements.

I noticed it's possible to get the occasional bottle of the HFE Novec 7000, 7100, and 7200 liquids on eBay so I might look at that route for sourcing supplies for my experiment.

Thanks again,
Andrew

Hi Hamei.

Is it possible that the great firewall of China might be kicking in on your system and performing DNS hijacking?

I don't know if this is relevant to your situation but a duckduckgo search of the IP address (59.24.3.173) brought up a mention in the following article:
http://www.dit-inc.us/node/122

Hi. I've done a few small tests with fluorocarbons but haven't gotten to the point of doing open bath immersion due to the cost of the fluid.

The surface enhancement coating is called a BEC "boiling enhancement coating" that is applied using a spraying process. Phil Tuma from 3M has prepared a few youtube videos that show how it is applied to a CPU's heatsink.

After a heatsink has the BEC compound applied it is bonded to the CPU using a Multicore Solder Vaporette Heater. A Vaporette heater is an SMD soldering device that works by immersing CPUs and heatsinks in a hot vapour of Flourinert FC-40 which offers a precision temperature controlled CPU soldering environment.

Spray Coating of Pin Fin Boilers for Sandybridge CPUs
https://www.youtube.com/watch?v=fMl3cnbsbUg

CPU Soldering
https://www.youtube.com/watch?v=kUVtvfsaZbY