#120 25-05-2011 12:39:22

Polynesia
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Re: MILKYWAY

Si j'ai bien compris, l'admin vient de laché un lot 1000 unités GPU de test....

I'm testing a new framework for running our searches, which should make   them a bit more reliable and reduce server load. I've sent out a small   batch of 1000 (and won't be generating new ones) to see if this works.    Let me know if they crunch correctly for you, they should be named   'ps_test_1_X' where X is some number.

Je teste un nouveau cadre pour l'exécution de nos recherches, ce qui   devrait les rendre un peu plus fiable et de réduire la charge du   serveur. J'ai envoyé un petit lot de 1000 (et ne sera pas générer de   nouvelles) pour voir si cela fonctionne. Permettez-moi de savoir si   elles crise correctement pour vous, ils devraient être nommés   «ps_test_1_X» où X est un nombre.


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#121 13-06-2011 13:25:07

Polynesia
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Re: MILKYWAY

I've updated 15 of the 16 different versions of the separation for all systems. Post here if you have any problems (particularly if you have a problem with the new 32 bit Linux GPU applications...)

New features:
- Faster CPU calculations because of SSE2 intrinsics from Crunch3r. This should get a bit faster later when I get to some other stuff.

- The binaries now include the different SSE levels for the critical function (e.g. x87/SSE2/SSE3) all in one, and will use the appropriate one for the detected CPU's capabilities, so you don't need any special __sse2 version or anything. The problems on systems without SSE2 which happened sometimes for the GPU applications should also be fixed.

- Checkpointing for GPUs for both OpenCL/Nvidia and ATI/AMD for CAL. It will checkpoint no more frequently than after at least 10% progress, so it might not checkpoint as frequently as your settings specify if you have a particularly slow GPU. GPU checkpointing is a bit slow when it does happen, so if you don't want it, you can disable it with the flag --gpu-disable-checkpointing.

- The Nvidia OpenCL platform should now always be used avoiding issues if you had both AMD's and Nvidia's installed

- More reliable chunking for different GPUs. I didn't play with the time estimates so much, but I think the actual run times should now be closer to the estimates. There should also be fewer cases where a GPU will end up using the slowest possible work size option. I'll probably have to fiddle with this some more if people still aren't happy with the lag.

- Work around for a Catalyst driver problem where sometimes the GPU was reported as 0 Mhz, resulting in much more lag which I think was some peoples' problem.

- New flag that some people requested: --process-priority (-b). On Windows this is 0 (lowest) - 4 (highest) for overriding the process priority. On Linux this is the nice value.

- CAL specific: Removed --responsiveness-factor flag. Use --gpu-target-frequency or --non-responsive instead depending on what you want to do.

- Actually updated the 32-bit OS X application

- In the event of a crash on Windows, you should no longer be bothered with useless crash dialogs

I created versions of the new apps with app_info's.

I hope they are correct as I guessed on the CUDA OpenCL versions.
http://www.arkayn.us/forum/index.php?ac … ads;cat=11


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#122 13-06-2011 13:50:33

Damien
Prince of Flood
Date d'inscription: 23-05-2009
Messages: 2157

Re: MILKYWAY

Voilà un administrateur de projet qui se démène 1079


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#123 14-07-2011 20:53:48

Polynesia
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Re: MILKYWAY

Dear MilkyWay@home volunteers,

    I want to first thank all of you for helping us study the Milky Way galaxy by donating your CPU and GPU cycles to our project. Some of you have also contributed your computational expertise, or contributed cash or GPU cards to our projects. We appreciate all of these gifts. MilkyWay@home CPU/GPU cycles have contributed to defining the distribution of stars in the Sagittarius dwarf tidal stream. Stars in this stream were pulled off of the Sagittarius dwarf galaxy, which is in orbit around the Milky Way, by the Milky Way's gravity. In addition, novel computational techniques have been developed for asynchronous parameter searches using a heterogeneous volunteer network.
    Over the next year we plan to modify MilkyWay@home to measure the overall distribution of stars in the Milky Way halo. The magnitude of your generosity has made it possible for us to dream bigger dreams. We are starting to transform MilkyWay@home to do n-body simulations of several dwarf galaxy tidal disruptions at the same time. We can then change the model parameters for the Milky Way's gravity and for the properties of the dwarf galaxies so that they match the properties of actual tidal streams in the Milky Way. This is a big job and a new field, and we would not be able to contemplate doing this if you were not volunteering the equivalent of one of the largest supercomputers in the world to this task. Presently, we have taken only the first steps towards this, by simulating the disruption of a single dwarf galaxy and varying only the parameters of the dwarf itself. We have quite a lot to learn in developing the correct techniques for solving this problem, but if we are successful we will eventually find out how much mass (mostly dark matter) is in the Milky Way, and how it is distributed in space.

    A year ago, I was successful in getting an NSF grant funded that supports my astronomy research on the Milky Way, and a significant part of that grant was justified by the use of your volunteer computing cycles. We are still seeking grant funding that will support the computer science research side of MilkyWay@home. A few years ago when we were stretched for funding between grants, we raised about $7000 in private donations, most of which were from MilkyWay@home volunteers. The remaining portion of this funding is currently being used on summer salary to support Matthew Arsenault, who is working on converting our n-body code so that it will run on GPUs. Matthew recently received his BS degree from RPI, and has been working on MilkyWay@home code for more than a year. He will be entering our PhD program this fall. He will be supported as a teaching assistant during the coming school year, but I am again turning to the volunteers to help me support him in summer 2012. Currently, I do not have funding to guarantee that I can support him. The cost of a graduate student summer salary plus institutional overhead is about $10,000. Of course, we can always do more with extra funding, but students are my top priority. Matthew has done a fabulous job implementing our current n-body simulations.

    We are therefore launching the following "thank you" and fundraising campaign. On September 1, 2011, we will run MilkyWay@home with double credit. Hopefully, this will at least make up for some of the credit lost when MilkyWay@home was not operational for software, hardware, or air conditioning emergencies. We understand that these have been frustrating to some users, but be assured that they were much more frustrating for us.

    In addition, we will run MilkyWay@home with double credit for one additional day for every $500 raised between now and September 1, 2011. Donations can be made with paypal or credit card online at:
    http://www.dudleyobservatory.org/MilkyW … Home2.html
    Payments by check can be made out to Dudley Observatory and mailed to: Dudley Observatory, 107 Nott Terrace, Suite 201, Schenectady, NY 12308, with MilkyWay@home in the comments line of the check, or with a letter that explains that the donation is to MilkyWay@home. For donations in other forms, you may contact me directly (heidi@rpi.edu). The donations are tax deductible, and you will receive a letter from Dudley Observatory that can be used for tax purposes. Donations will be used to fund graduate or undergraduate students, travel, publication, materials, or equipment costs related to Milky Way research and education. For gifts over $1000, donors may specify a person, family, or organization to be acknowledged in research publications which are partially supported by this donation, and to receive a signed, printed copy of the publication.

    Again, we thank you for your support of our research project. We have been overwhelmed by the number of people who are willing to contribute.

    Sincerely,
    Prof. Heidi Newberg


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#124 21-07-2011 17:35:04

Polynesia
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Re: MILKYWAY


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#125 04-12-2011 13:26:25

Damien
Prince of Flood
Date d'inscription: 23-05-2009
Messages: 2157

Re: MILKYWAY

Un nouveau serveur a été commandé. Parce que les délais de livraison sont lents actuellement (à cause des inondations en Thaïlande produisant de longs délais de livraison pour les disques), la date d'expédition estimée est aux alentours du 29 décembre, ce qui signifie que nous ne nous attendons pas à obtenir le nouveau serveur en état de fonctionnement avant le milieu ou la fin Janvier 2012. Nous allons continuer à surveiller le serveur actuel pour éviter les bugs logiciels précédents, et nous espérons maintenir ce serveur en bon état de fonctionnement pour les deux prochains mois.

Merci,
Heidi


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#126 09-02-2012 11:05:40

Polynesia
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Re: MILKYWAY

Separation updated to 1.00
I've updated all of the separation applications to 1.00. For changes people might care about,

    - The old CAL version is gone; it's replaced with the OpenCL application. On AMD/ATI GPUs (older than 79xx) it is using some hackery to use the same IL kernel as before so it should be as fast. However this also means the Radeon 38xx cards aren't supported with new stuff.

    - Radeon 79xx stuff should work

    - The occasional validate errors from empty / truncated stderr should stop

    - AVX will be used if available on Linux and Windows (64 bit only for Windows)

    - I've increased the default GPU target frequency so GPU stuff should make things less laggy on average. You can now also configure this with the web preferences now so you don't need to use app_info stuff if you want to play with that.

    - Partial workaround with high CPU usage with recent Nvidia drivers.*


As usual post problems you run into here.



* It should cut down on the CPU usage a bit while not sacrificing too much. I would recommend not using it unless you are very unhappy with the CPU usage on Nvidia. There are options to change the polling mode if you want to lower the CPU usage further while not slowing it down. (--gpu-wait-factor (default = 0.75) and --gpu-polling-mode (default = - 2) work similarly to how they did with the old CAL one, but slightly different). With the default of -2 it will use mode -1 unless it is an Nvidia driver newer than the one that introduced the high CPU issue, where it will use mode 0. Mode -1 uses the correct waiting method, mode 0 use the correct waiting method with an initial sleep based on time estimates, and modes > 0 are a polling period in milliseconds. The wait factor is a sort of correction of the time estimate used for the initial wait. The default is 0.75, to wait for 75% of the estimated time before trying to poll. 8 Feb 2012 | 17:36:48 UTC · Commentaire

Ce parle de réglage à la fin que l'on peut faire nous ?


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#127 09-02-2012 12:03:24

Viny
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Re: MILKYWAY

of course ....   roll


++
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#128 09-02-2012 12:11:10

Polynesia
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Re: MILKYWAY

oui ? et comment on régle çà ?


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#129 09-02-2012 20:00:35

Viny
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Re: MILKYWAY

I don't understand technical english ... wink


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#130 09-02-2012 22:40:31

Polynesia
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Re: MILKYWAY


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#131 25-08-2013 13:53:46

Polynesia
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Re: MILKYWAY

bientôt des badges....smile


http://goo.gl/pY0Zp * PRPNet (PSA): 3 716 000 + 47 primes

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#132 25-08-2013 19:10:05

Damien
Prince of Flood
Date d'inscription: 23-05-2009
Messages: 2157

Re: MILKYWAY

Polynesia a écrit:

bientôt des badges....smile

Merci pour l'info. wavey Il sera bientôt plus facile d'énumérer les projets BOINC qui ne proposent pas badges, plutôt que de recenser tous ceux qui en distribuent. wink


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#133 27-08-2013 22:49:37

Viny
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Re: MILKYWAY

On ne saura plus où les mettre tous ces bagdes.


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#134 04-11-2013 14:16:19

Andromede33
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Re: MILKYWAY

Bonjour,

Il y a quelques minutes j'ai décidé de n'installer que MilkyWay@Home et quelle ne fu pas ma surprise de recevoir un message me disant que ma version des catalyst n'est plus bonne (alors que j'avais la dernière version enregistré de AMD).
Alors ni une, ni deux ... J'ai utilisé Google et cherché si il y avait une version plus récente des catalyst.
Et oh miracle je suis tombé suis la version 13.10 beta2 que j'ai immédiatement téléchargé et installé.

Je n'ai plus depuis le message de MilkyWay@Home me disant que catalyst est dépassé.

Je vous tiens au courant des fois que mon ordi et mon BOINC ce transforme en pigeon voyageur ! happy_38

Dernière modification par Andromede33 (04-11-2013 14:18:04)


L'intelligence est un privilège qui doit être mise au service du bien de l'humanité et pas du mal. (SpeederMan II)
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#135 12-02-2014 22:07:19

korn-57
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Date d'inscription: 27-05-2009
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Re: MILKYWAY

Salut tout le monde,
je suis de retour sur Boinc!!!
Après qqes années d'inactivité ça fait de bien de revenir... Par contre, je ne me rappelle plus comment activé le calcul via le GPU de ma ATI Radeon HD 4800 Series...
Est-ce qu'il faut télécharger des pilotes supplémentaires comme à l'époque quand j'avais 1 Nvidia je téléchargeais qqch en rapport avec Cuda...

http://imageshack.com/a/img547/2103/7jah.jpg

Merci de rafraichir la mémoire svp.

PS : mon système d'exploitation est Ws 7 x64 Ultimate + Boinc 7.2.39 x64 Vbox

Dernière modification par korn-57 (12-02-2014 22:14:18)


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#136 20-02-2014 12:45:08

gilloox
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Date d'inscription: 19-05-2009
Messages: 2385

Re: MILKYWAY

Pour quoi Vbox.

Pas la peine pour Win7.

Vbox, c'est pour cruncher sur des UT Linux par exemple.

Désinstalle VBox et redémarre ton PV.

@+

Dernière modification par gilloox (20-02-2014 12:45:27)

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