Posts by Francis Noel


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1) Message boards : Cafe SETI : Beer Drinkers thread part 18 (Message 1551141)
Posted 45 days ago by Profile Francis Noel
Today opens the first edition of the Festival de la bière de la Côte-Nord in my town. 12 microbreweries to be present on-site :D.

This is going to be a good week-end.

Cheers !



That sounds awesome! I need to brush up on my French, and head to Quebec. :~)


A beer tour of the province would be quit possible...
There are over 100 microbreweries (and less than 8 million inhabitants...), and at least 10 distinct beer festivals that I am personnaly aware of. Most of us understand English, too !
2) Message boards : Cafe SETI : Beer Drinkers thread part 18 (Message 1551082)
Posted 45 days ago by Profile Francis Noel
Today opens the first edition of the Festival de la bière de la Côte-Nord in my town. 12 microbreweries to be present on-site :D.

This is going to be a good week-end.

Cheers !
3) Message boards : Cafe SETI : Why do you run SETI@home? (Message 1488085)
Posted 187 days ago by Profile Francis Noel
make things better for humanity. My
ordinary life wont make that happen


Sir I disagree with your statement. I believe
that the reason that all of us are here is because
you and others like you, now and all through time do
what you do every day. You pay your taxes, you
keep the laws, you make small children smile and feel
safe. You should not say that you are not important to the
big picture. With out people like you and me, and all
the others who put in the time and effort to live every
day, there would be no Seti project, there would be
no town, city, country, or even human race. If you only
once had some one say, "You made my day" you are
important. I am glad that I know that you are alive,
and I am willing to bet that there are great many other
people in your life who are able to say the same thing. I'll
even say that the whole human race would have reason
to say the same thing. With people like you, me, or the
others in here, the future looks as bright as it can ever be.
I have read that there have been millions of other kinds
of animals that have come and gone on this world, but
we are here now. the reason for all of this is because of
individuals who living as we do, make things better for
humanity.


I agree with what you are saying celttooth. I do try, every day, to be the best human possible and to better myself along the way. I am not a native anglohpone so I'll try as best I can to clarify.

What I meant by that statement, which is to be taken along with those following it, is I do not have any more impact on the advancement of Civilization than any other average Joe. However I feel that S@H and BOINC give me an indirect opportunity to contribute and help advance real knowledge for everyone and generations to come just by runing software and paying the Hydro bill. Whitout those means I could maybe contribute money to some research fund but doing actual signal analysis and making BOINC possible is so much more hands on ! I am greatful to be able to contribute is what I'm saying.
4) Message boards : Number crunching : Worth running two WUs simultaneously on mainstream Kepler cards ? (Message 1487831)
Posted 187 days ago by Profile Francis Noel
Thank you Juan.

The cases you present are very interesting in regards to my concern about a slower CPU keeping a faster GPU fed. The Q8200 vs GTX670 seems to illustrate this well.

From what I see it looks my 1090T is still able to keep up with the 660 while crunching on all cores.

Tuning based on GPU load seems like the way to go.
5) Message boards : Cafe SETI : Why do you run SETI@home? (Message 1487827)
Posted 187 days ago by Profile Francis Noel
Many reasons.

Not so much to find ET..

but

Because I have resources available taht would otherwise go unused.
Because it is a genuine and valid radio-astronomy project and I can help.

but mostly

Because I want to make a difference and make things better for humanity. My ordinary life wont make that happen, but by participating in S@H I believe I am making things better by furthering human knowledge. S@H is real science. It produces results: hydrogen density was mapped from its data, micro black-holes were theorized and proven (Astropulse) and then S@H spawned BOINC.

S@H advanced radio astronomy, distributed computing, probably cryptography and other stuff by motivating GPU use outside of graphics, got the public interested in science again, made incredible resources available to other real and valid projects, allowed many of those projects to be possible in the first place while operating on a budget that would not have covered the coffee and donuts for the project that designed your MP3 player. Go ahead and compare the science per dollar that happend through S@H to anything else being done in the world... And I Helped.

I will be with the project for as long as I can because it matters.
6) Message boards : Cafe SETI : Beer Drinkers thread part 10 (Message 1487811)
Posted 187 days ago by Profile Francis Noel
bartender ... a round of drinks for everyone ... on me :-)

Splendid! thank you sir.
It is good to see you here Byron.
7) Message boards : Number crunching : Worth running two WUs simultaneously on mainstream Kepler cards ? (Message 1487809)
Posted 187 days ago by Profile Francis Noel
One other topic I'd like to touch on is the CPU 'share' BOINC reserves to 'feed' the GPU. The Lunatics' app_info sets it at what I assume is .04 cores per GPU task. My box has an AMD 1090T CPU which is not so great at single threaded work. It seemed to keep up fin with the GTX640 but maybe more 'shares' would be required to feed the 660? Then again if I can get the GPU load is at 99% I'd assume it is not starved for data...

The CPU share for CUDA applications is indeed set by the Lunatics installation process at 0.04

Changing that number actually makes no difference whatsoever to the application's CPU or GPU loading: it's not even worth experimenting with.

The only time it would be worth changing is in connection with the OpenCL apps for GPUs - Astropulse only, as far as the installer and NVidia cards are concerned. Because OpenCL applications often perform better if the loading on the CPU from other processes is reduced, setting a high number here can reduce the number of other tasks that BOINC allows to run, and hence provide the breathing space if OpenCL needs it. But again, that's not needed for what you described.



Thank you Richard for the very definitive answer :)

Looks like I'm good to go then, thank you all once more!
8) Message boards : Number crunching : Worth running two WUs simultaneously on mainstream Kepler cards ? (Message 1487804)
Posted 187 days ago by Profile Francis Noel
Thank you all for your input.

Everyone agrees more work gets done by going parallel so I will definitely start experimenting some more. Jeff's observations (and mine) seem to indicate that GPU load is the most significant metric and from what I've seen on my rig up to now running two WUs pegs it at 99% so I'll probably go with that. For now I'll leave it alone for at least two weeks to try and get a somewhat reliable yardstick.

One other topic I'd like to touch on is the CPU 'share' BOINC reserves to 'feed' the GPU. The Lunatics' app_info sets it at what I assume is .04 cores per GPU task. My box has an AMD 1090T CPU which is not so great at single threaded work. It seemed to keep up fin with the GTX640 but maybe more 'shares' would be required to feed the 660? Then again if I can get the GPU load is at 99% I'd assume it is not starved for data...

This is pretty much the last tweak I intend to look into. With the optimized apps instaled, all CPU cores chugging and the GPU saturated with work I'll be satisfied with the setup.
9) Message boards : Number crunching : Worth running two WUs simultaneously on mainstream Kepler cards ? (Message 1487627)
Posted 187 days ago by Profile Francis Noel
Hi everyone

Had to take a break from crunching for a while but I'm back now. Feels good to be processing WUs again :)

Decent mainstream Kepler cards are available for under 200 Canadian moneys now so I got my hands on a GTX660 OC from Gigabyte. For me its been 8800GT -> GTX460 and I'm now moving up to the 660.

I've been playing with the card and compared to the 460 I like how cool it runs and I LOVE how frugal its power apetite is. On paper the 660 has twice the grunt of the 460 at half the wattage. Not sure how the RAC will fare tho.

I am using the Lunatics apps (love the installer) and the GPU tasks coming in are tagged (cuad50) now. GPU-Z reports a GPU load that oscillates between 65-70%.

For multibeam with the GTX 460 and the Lunatics cuda42 apps I could gain a marginal advantage by running two WUs simultaneously. I do not have dedicated crunching rigs so it is very hard for me to establish a baseline running a single WU at a time and then change up to two and see which way the RAC goes.

I thought I'd ask here if, as a general rule, any gain was achieved by going parallel on the GTX 660 or if the extra effort is lost to task switching and other overhead.

Curious folk can check out Computer 5819478 where the new 660 has been living for a week now.

Thanks for reading !
10) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1479392)
Posted 207 days ago by Profile Francis Noel
The tool itself looks forged.
Would a blacksmith use it ?
11) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1479323)
Posted 208 days ago by Profile Francis Noel
Oh wow...

So the top jaw grabs some kind of rod, hook or eyelet.
The bottom jaw rests against a surface and acts as a lever (bent tip).

I'm gessing this is some kind of lifter, or opener for some sealed container ?
12) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1479128)
Posted 208 days ago by Profile Francis Noel
A snarling iron.

Yes! Good job !

Basicaly it is a tool one uses to hit the inside walls of a hollow metal object (pot, cup, flute). Many kinds of 'tips' exist, the bent end goes in a vice.

The one pictured here with the 1" ball is used to repair dings in metal containers by raising them back outwards. Other tips like points, bevels and such are used to create motifs, ridges etc.

The tool's design is important because is uses vibration to work the surface so a carefuly engineered iron will be much more efficient than a makeshift one.

In the olden days a snarler made teapots...

"An iron rod, sometimes Z-shaped and usually about a foot in length and I" thick, used for raising bosses and bumps in relief on narrow-necked objects such as bowls in which a hammer or repoussé punch cannot be inserted. One end of the iron is held in a bench vice, and the other end, which has a rounded knob, is placed inside the object against the place where the boss is to be produced. The part of the iron near the vice is given a sharp blow and this causes the other end to rebound against the side of the object; the blows are repeated until a boss of the required size has been beaten out."

One would strike the iron with a heavy metal bar instead of a hammer/mallet so hitting would not require much attention (to hit with the hammer head on the small bar) in order to concentrate on the work piece.

Larger pieces would require one persone at the iron and the other holding the piece.

On even larger pieces you would just use a regular chisel/mallet combo because they would fit inside.



Your turn msfiske.
13) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1479120)
Posted 208 days ago by Profile Francis Noel
Is it used to form a precious metal?

It will form any metal, but the tool has a rich history of usage in jewelry so yes precious metals are definitely included.
The size of the tool will vary according to the size of the piece being formed so the jeweler's tool will be smaller than the one pictured here (that came out wrong).
14) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1478994)
Posted 208 days ago by Profile Francis Noel
Do you use it to bend metal into a particular form or angle?

No bending.
15) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1478976)
Posted 208 days ago by Profile Francis Noel
Is it used to form something?

Ah, now we are getting there.

Yes!

This is a metal working tool.
16) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1478944)
Posted 208 days ago by Profile Francis Noel
Is it normally used in the position shown? Does the position vary, or matter at all?


Yes! On the picture the uppy bit is up and the downy bit is down.
The position could be varied but I see not benefit in doing so. The position matters in a sense: operator comfort/usability. The tool's performance would not be affected by changing its orientation but usability would suffer.

Extra hints for asking good questions: This is a hand tool requiring a quite violent form of interaction with its user, but it is capable of very delicate work...
17) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1478922)
Posted 208 days ago by Profile Francis Noel
Is it used to polish something?

Not polishing, but best suggestion to date as this tool -does something- and is not part of something else.

Keep going guys.
18) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1478858)
Posted 209 days ago by Profile Francis Noel
Is it used to separate something?

Still cold.

In a pinch anything can be used as a pry-bar but that is not the intended purpose of this object. I guess it could make a decent firepoker too but again, not designed for that.
19) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1478834)
Posted 209 days ago by Profile Francis Noel
The ball-end seems worn. Is that from hand contact?

Nope.

The ball end is not worn as the tool pictured is new. It is shiny because this part of the tool is not painted/oxydized and or the mill scale has been removed when the ball end was shaped.

More hints: using the tool will cause (cosmetic) surface wear at the ball end, along the top of the long section and on both sides of the short section.
20) Message boards : Cafe SETI : Mysterious Miscellaneous Tool Time v2 (Message 1478761)
Posted 209 days ago by Profile Francis Noel
Does it wind something?

Nope, sorry.
No windng, cocking, priming or tensioning is done with this tool.


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