Welcome to MilkyWay@home

Posts by Bill F

1) Message boards : Application Code Discussion : Android ARM application (Message 71053)
Posted 3 Aug 2021 by ProfileBill F
Post:
Has there been prior discussion of the possible creation of an Android App for cell phones. And or a request out to volunteers to assist with a port / create ?

Lots of hardware out there and lots of volunteers.

Thanks
Bill F


Bump it has been about 4 years

Thanks
Bill F
2) Message boards : Number crunching : N-Body Simulation MT (Message 71043)
Posted 31 Jul 2021 by ProfileBill F
Post:
Long Runner aborted after 4 days 10 hours when I finally spotted it.

de_nbody_06_16_2021_v176_40k__data__7_1626375792_418770

Thanks
Bill F
3) Message boards : News : Separation Validator Updates/Brief Server Outage(s) (Message 71024)
Posted 24 Jul 2021 by ProfileBill F
Post:
Cavalary you are running a fairly old version of BOINC 7.6.22 it was released in Dec of 2015. Maybe you could consider upgrading to 7.14.2 (32 bit) or higher if you have a 64 bit system. Also has your PC or mother board manufacturer released any updates for your hardware that might help you ?


Go with if it ain't broke, don't fix it, and at least so far BOINC didn't cause issues, and saw some things about changes to scheduling in newer versions.


At some point all versions of Boinc below 7.10.XX will not be allowed because they don't have the capability to still work on all the different Projects, there was a big fuss awhile back about them all going to https and then some also banned version below 7.10.xx because of a possible security thing I think as well. Going to a version of Boinc above 7.14.xx also gives you the 'pre-fetch' that alot of people hate while others love it. If you have a zero resource share Project it knows you will need a new task soon so downloads it before the task you are working on is completed so there is no more lag between tasks. It only partially works on MilkyWay because they have a 10 minute wait period between asking for gpu tasks but not for the cpu tasks so it will continue to run cpu tasks even with a zero resource share.


There were also library version updates in 7.6.33 and 7.8.2 and a few bug fixes between then and now.

Bill F
4) Message boards : News : Separation Validator Updates/Brief Server Outage(s) (Message 71009)
Posted 23 Jul 2021 by ProfileBill F
Post:
The validate errors will account for some of your 40% reduction in RAC but there is also a disparity in the old unit resulting in 227 points and the new at 230 which considering the work unit takes longer than the 3 point extra awarded there is a defecit on every work unit. This has resulted in a shortfall of about 250K per day in my situation without the failed units.

The time difference in my case is similarly small for regular WUs. With computer otherwise idle, used to take almost exactly one hour, give or take mere seconds. Now it's 1:01-1:02. But there are indeed those (so far few, but existing) WUs taking about 1:47, yet those reward 230 credits just as well.

Either way, doing the math, at almost exactly 1h/WU and 2 cores, if computer would have done nothing else at all, my maximum RAC before this latest run should have been up to 10900, and it was usually a little over 10000, with peaks around 10500 if I'd hardly use the computer for a few days and dipping below if I'd use it more, such as playing a game. So, very little room for invalids before. And I also occasionally checked anyway.
Now, with the new values, my maximum should be up to 10700, a bit less if 1-2 of those longer ones would come per day. The difference to the current value of less than 7000 comes from invalids.

And if there are those tiny but sufficiently significant differences between my results and those of wingmen that produce those invalids, I wonder whether the new run does something or uses some instructions that older or weaker CPUs don't deal with so well... Or may it have something to do with the 32-bit OS?


Cavalary you are running a fairly old version of BOINC 7.6.22 it was released in Dec of 2015. Maybe you could consider upgrading to 7.14.2 (32 bit) or higher if you have a 64 bit system. Also has your PC or mother board manufacturer released any updates for your hardware that might help you ?

Thanks
Bill F
5) Message boards : News : Separation Validator Updates/Brief Server Outage(s) (Message 70976)
Posted 18 Jul 2021 by ProfileBill F
Post:
Similar results my invalid rate has dropped significantly. I am one happy cruncher.

Thank you
Bill F
6) Message boards : News : New Milkyway Badges Online (Message 70946)
Posted 9 Jul 2021 by ProfileBill F
Post:
The badges seem to have stopped updating ? I have rolled past 12 years but still show only 10, Probably a script issue.

Thanks
Bill F

ps well I guess I spoke too soon there it is
7) Message boards : Number crunching : Tasks hung in Validation Pending (Message 70923)
Posted 27 Jun 2021 by ProfileBill F
Post:
Additionals

578596
578671
1753983
1753987
1753991
1743715
1743716
1743717
1743718
1743719
1743720
1743721
1743722
1732310
1732311
1732309
1728358
1707897
1707899
1703826
1703828
1703829
1703667
1703668
1703669
1694328
1694329
1685385
1685386
1679147
1679150
1679151
1679152

All returned on 02/02/2021

If more examples are wanted or needed I can provide

Thanks
Bill F
8) Message boards : Number crunching : Tasks hung in Validation Pending (Message 70918)
Posted 26 Jun 2021 by ProfileBill F
Post:
The two tasks listed below are hung in Validation Pending with no associated Work Unit.

1828909
1828910

They came back from the user on 02/02/2021

Thanks
Bill F
9) Message boards : Number crunching : Stat's for Export not updating (Message 70823)
Posted 22 May 2021 by ProfileBill F
Post:
BOINCStats shows the following time stamps for project stat's export.

Last update user XML 2021-05-19 12:02:36 UTC (2 days 14:32:30 old)
Last update host XML 2021-05-21 12:02:31 UTC (14:32:35 old)
Last update team XML 2021-05-19 12:02:36 UTC (2 days 14:32:30 old

We need a script bumped to restart

Bill F
10) Message boards : Number crunching : Long running Tasks (Message 70171)
Posted 17 Nov 2020 by ProfileBill F
Post:
I am having a problem with long running tasks on a Dell Laptop Win 10 that has been pretty reliable. It is not pulling any errors that I am aware of on multiple projects. Intermittently it will run long with times climbing instead of falling on a Milkyway task. It runs them as 6 cpu jobs.

Example Task that I manually aborted.

Task and Work Unit 880644236 2077317465
CPU ID: 851150

Suggestions welcome

Thanks
Bill F


I'm guessing that's an n-body cpu task...they don't work for everyone and use every cpu core your pc has to crunch each and every one of them. That means if you are doing anything else with the pc they take longer and longer and longer.



Yes they have been n-body cpu tasks. What is odd the same system can complete the same type successfully for credit and also complete them but "have an inconclusive status". Just seems strange I have over 10 years and over 5 million credits and have never seen anything like it before.

Thanks for your reply.
11) Message boards : Number crunching : Long running Tasks (Message 70168)
Posted 17 Nov 2020 by ProfileBill F
Post:
I am having a problem with long running tasks on a Dell Laptop Win 10 that has been pretty reliable. It is not pulling any errors that I am aware of on multiple projects. Intermittently it will run long with times climbing instead of falling on a Milkyway task. It runs them as 6 cpu jobs.

Example Task that I manually aborted.

Task and Work Unit 880644236 2077317465
CPU ID: 851150

Suggestions welcome

Thanks
Bill F
12) Message boards : Number crunching : Updated BOINC Clients 7.16.11 - Windows 64-bit and Mac OS X (64-bit Intel) (Message 70115)
Posted 9 Sep 2020 by ProfileBill F
Post:
Version 7.16.11 of the BOINC client software has been released for Mac OS and Windows.

Download at https://boinc.berkeley.edu/download_all.php

Release notes at https://boinc.berkeley.edu/wiki/Release_Notes

Bill F
13) Message boards : Number crunching : Updated BOINC Clients (Message 69671)
Posted 8 Apr 2020 by ProfileBill F
Post:
Updated BOINC Clients for Win 64, Mac OS X 64 and Linux 64 have been released for public use

https://boinc.berkeley.edu/wiki/Release_Notes_for_BOINC_7.16

Bill F
14) Message boards : News : New Server Update (Message 68373)
Posted 24 Mar 2019 by ProfileBill F
Post:
Hey Link,

Going forward, we are planning a new N-body release for next week. This release will not include a MT version as we have decided it does not make sense for our project anymore. I will be working on fixing the preference options, but it might take me a little while as I work through several other issues.

Best,
Jake


Besides the Application choices in the Project preferences ... did you have ?

Run Test applications Yes / No
Run other applications if no work is available Yes / No
Export Stat's Yes / No (for Europe)

Thanks
Bill F
15) Message boards : News : New Server Installation (Message 68229)
Posted 8 Mar 2019 by ProfileBill F
Post:
As you move forward please post news articles with outage dates and times so that your loyal volunteers know what is happing when.

Thanks
Bill F
16) Message boards : MilkyWay@home Science : Nbody Science (Message 67898)
Posted 17 Nov 2018 by ProfileBill F
Post:
Hi,

I'm Colin Rice an undergraduate at RPI who has been working with mw@home for about a semester now. I'm posting to give a little insight into the nbody simulations which I recently took over.

A N-Body simulation is a simulation where you are using multiple small bodies and applying forces between them to simulate some sort of physical system. In our case we are simulating a dwarf galaxy orbiting the milkyway.

We are currently investigating the makeup of dark matter within dwarf galaxies. Due to inconsistent angular velocities we think there may be dark matter inside of dwarf galaxies. However it is not conclusively proven.

Our goal is to determine if dark matter inside of a dwarf galaxy causes a distinctive orbit when the galaxy is then pulled into an orbit about the milkyway. We are doing this in two steps.

1)We are currently running simulations to see if the N-Body system can recover the initial parameters of a dwarf galaxy which we generated with dark and light matter, and then evolved in time.

Specifically, when an nbody runs the server has generated a trial set of parameters and is evolving them to see if they match the observed histogram. It then evaluates how well they worked and creates new runs based on the current runs fitness. It only evaluates the fitness based on the light matter. However, it used both light and dark matter when running the simulation. This is done because we can only see the light matter in real world data and that is what this system is designed to process.

2) The next step after we confirm that the technique works via test runs is to put real world data into the simulation and see if we can figure out the initial parameters for the dark matter inside the dwarf galaxies. We can't just plug in the initial data because we are unsure as to whether the system works.


Can we get an update on this thread ? Does the system work and are we feeding any real data yet using it ?

Thanks
Bill F
17) Message boards : News : New MilkyWay@Home Developer (Message 67719)
Posted 22 Aug 2018 by ProfileBill F
Post:
Eric

Welcome aboard !!!

I am looking forward to your efforts to improve the MilkyWay Project. A lot of the volunteer crunchers out here have been with the project for years. We are committed to the project and have weathered a few storms and hick ups.

Please be as frequent as you can be with news and updates as they are always appreciated.

I understand that in code development you can't test every platform, but the more you can debug an application version before release the less pain we have out here.

Again welcome aboard

Bill F
Dallas TX
18) Message boards : Number crunching : New MAC BOINC Client 10.7.3 64Bit on Intel (Message 67601)
Posted 15 Jun 2018 by ProfileBill F
Post:
A patched release of the BOINC Client for MAC OS 64Bit on Intel was released on June 6th.

Version 10.7.3

Bill F
19) Message boards : Number crunching : Profiles? (Message 67368)
Posted 20 Apr 2018 by ProfileBill F
Post:
The Force was truly with you !

Light has prevailed over darkness !

Truth and Justice come in first !

You have slain the Dragon !

Yep ... IT WORKS !!!

Thank you for being persistent.

Bill F
Dallas TX
20) Message boards : Number crunching : Profiles? (Message 67274)
Posted 24 Mar 2018 by ProfileBill F
Post:
Jake,

BETA has been around since 2008 and I have been around since 2009. I suspect that we will be patient and stick around. Take your time and swat the bug.

Thanks
Bill F


Next 20

©2021 Astroinformatics Group