Posts by Woodgie


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1) Message boards : Number crunching : Anybody running SETI on a switch? (Message 1711625)
Posted 17 days ago by Profile WoodgieProject donor
Only 15TB? Try 32TB!

Well, OK, it's only a Mac Pro connected to a NetApp SAN, but I have to beat you in something, right? :-)
2) Message boards : Number crunching : Boinc Latest installer (Message 1708115)
Posted 25 days ago by Profile WoodgieProject donor
I have

boinc_7.4.42_macOSX_x86_64.zip

available for all you Mac OS X users out there.
3) Message boards : Number crunching : Gripes and Kudos IV (Message 1706938)
Posted 29 days ago by Profile WoodgieProject donor
Kudos: Matt and the team who keep the servers and infrastructure running through thick and thin. A very happy SysAdmin Day to you all!
4) Message boards : Number crunching : Happy SysAdmin Day 2015 (Message 1706936)
Posted 29 days ago by Profile WoodgieProject donor
Matt Lebofsky et al. you do outstanding work keeping the project going when things insist on falling over. You are adept at finding out why and picking them up again. Without you the project would have evaporated long ago.

Your work is appreciated and as one SysAdmin to others, I feel your pain :)

To others out there who work as SysAdmins and the like, the same.
5) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1706328)
Posted 29 Jul 2015 by Profile WoodgieProject donor
Hi Woodgie,

Hehehe :-)


+++Mr. Jelly! Mr. Jelly!+++ +++Error At Address: 14, Treacle Mine Road, Ankh-Morpork+++ +++MELON MELON MELON+++ +++Divide By Cucumber Error. Please Reinstall Universe And Reboot +++ +++Whoops! Here Comes The Cheese! +++ +++Oneoneoneoneoneoneone+++ *Blip* *Blip* *Blip* End of Cheese Error *Blip* *Blip* *Blip* Can Not Find Drive Z: *Blip* *Blip* *Blip* Unknown Application Error *Blip* *Blip* *Blip* Please Reboot Universe *Blip* *Blip* *Blip* Year Of The Sloth *Blip* *Blip* *Blip*
6) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1706304)
Posted 29 Jul 2015 by Profile WoodgieProject donor
Not on cross-project stats, he doesn't! :P


Holy..!

BOINC combined : 660,296,907.84

SIX HUNDRED AND SIXTY MILLION, TWO HUNDRED AND NINETY SIX MILLION NINE HUNDRED AND SEVEN (point eight four)?

That's, what, nine times my 75(ish) million cross project? Nope. Nope. Nope.

Lottery win needed :)
7) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1706196)
Posted 29 Jul 2015 by Profile WoodgieProject donor
I just noticed I've broken the top 300 worldwide. 298th as of writing.

Which is nice. And I have a month or so before Richard Haselgrove falls before me. (What AM I going to do to keep this megalomania in check?)

To prove I'm NOT entirely megalomaniacal, here's something possibly of interest I read on The Register today.
8) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1702406)
Posted 17 Jul 2015 by Profile WoodgieProject donor
Yep, I was wondering who would post that first.
9) Message boards : Number crunching : Show and tell your machine. Here's mine. (Message 1702403)
Posted 17 Jul 2015 by Profile WoodgieProject donor
Hmm, we've got two 980Tis on order for my cow-orker's N-body simulations. I'd hoped to snaffle his S2070 for one of my 20-core Xeons, but he has other ideas...


One day, when I can slap 8 nVidia K80 in a box, I will.

Until I win the lottery I worked out yesterday I can probably trade up to 3 x 970 (second hand) for Outlander at little cost to me given what I could trade in for them (the Titan, the 2 x 750ti and a couple of old phones I have lying around doing nothing).

Performance-wise 3 x 970 will be only a shade more expensive (£30 or so) than 2 x 980 but quite a bit more than £30 more powerful. Looking at various benchmarks the 980 is only ~15% more powerful for a lot more than 15% of the price. [edit: Just had a look and the 970 appears to be ~150% more powerful than the 750ti, and as near as dammit comparable to the Titan with the added 'value' that now all the cards in Outlander will be the same)

I will investigate further on Saturday.

Got to love CEX!
10) Message boards : Number crunching : Show and tell your machine. Here's mine. (Message 1702146)
Posted 16 Jul 2015 by Profile WoodgieProject donor
Loving that Outlander machine. How well does your Titan run Seti tasks? I was looking into used Titans, and Titan Blacks for the double precision for other projects.


Originally I had 2, but burned one out and was getting a RAC of about 55k. Now with the Titan and 2 750ti I'm getting a RAC of about 46k

They're definitely worth it, but a 780ti works better I believe and would be cheaper than even a second hand Titan.

And then when you really get down to it a 980ti spanks the both of them, so...

Having said that, if you can get a Titan for a good price (I got mine effectively for free) then they're certainly built for it!
11) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1702137)
Posted 16 Jul 2015 by Profile WoodgieProject donor
...and I'm hot on your tail with only 3 machines running


I have to say, my long term goal is to build more machines with multi-GPUs as opposed to using Macs I find lying about. Altogether a better idea. That way everything wins.

I say "I don't do it for the credit, I do it for the science." but that's not strictly true for any of us, is it? :)
12) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1702111)
Posted 16 Jul 2015 by Profile WoodgieProject donor
At least LHC is up and running again, so my friends at IC high energy physics have moved their farm back to CMS simulation and analysis now. A few months ago their RAC was over a million!


That's not even fair. I could build machines like that but I want to stay married and have a home to live in :)

Here are some pictures, for them what care, of my current crop.
13) Message boards : Number crunching : Show and tell your machine. Here's mine. (Message 1702110)
Posted 16 Jul 2015 by Profile WoodgieProject donor
Right then, here's mine:




Well, one of them. Here are (some) of the others.

Some Mac Pros


iMacs and a couple more Mac Pros


2 venerable Xserves and 4 new Mac Minis (including the split personality machine, Pluto


A stack of older Mac Minis


And of course, the machine I'm posting this on, my 27" iMac. Yes, I have 2 screens attached to it, I'm a showoff, obviously :)


I have a couple more at home, Just an old and a new iMac. Machines come and go as I need to let users have desktops, but I usually have a few iMacs sitting around donating cores to the cause.
14) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1701701)
Posted 15 Jul 2015 by Profile WoodgieProject donor
In terms of Credit I am 99th. In terms of RAC I'm 34th. I only run 6 machines, and 2 of those are helping others.

Well done to you though, but you do have 37 machines :-)))


Just had a look at where I am in RAC. According to BOINCStats I'm second in the UK (and 34th worldwide, how meta!)

OK, I can live with that!
15) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1701700)
Posted 15 Jul 2015 by Profile WoodgieProject donor
Yeah, you gots a couple of ciphers that you'll quickly dispatch, and then Richard next month. Gets a bit harder after that...
Anyway, congrats. I guess there has to be something that Macs are good for!

I can dream, can't I? Also; SHOTS FIRED! :)


37 machines !!!!! wow you also got a power station plugged into the house as it sounds like you need one

35, one got put back to being a user's machine and the other is a split personality.

I suppose a few pictures would be in order. When I get a few minutes I might post some in that thread. (Then you'll see why power/cooling isn't much of a concern :) )
16) Message boards : Number crunching : Not that it matters one tiny little bit, but... (Message 1701630)
Posted 15 Jul 2015 by Profile WoodgieProject donor
...I JUST BROKE INTO THE TOP 20 SETI@HOME CRUNCHERS IN THE UK.
(well, for some reason it matters to me)

Helped by the kind loan of 2 more Mac Pros, They may be older but they're cores for the cause.

Cores for the cause. You heard it here first folks! (if it's original, which I doubt, greatly)

Ivan, I'm coming your way :)
17) Message boards : Number crunching : Cant merge hosts. But they're the SAME host... (Message 1700871)
Posted 12 Jul 2015 by Profile WoodgieProject donor
OK, so colour me confused.

All I did was format the hard disk and re-install the OS and BOINC (I should have kept the BOINC folders with the work in progress but I rushed. They'll get put back into the pot eventually when they time out).

Here are the 2 Plutos:

They're showing as the same

Here's 7423311, the 'original', from when I first set the computer to crunching in November 2014:


Here's 7587350, created not on the 29th May but yesterday (11th July '15), honestly! Unless there's something else going on.


The "something else going on" which may be relevant is that I did notice a while back (possibly even the 29th May, I have no way of knowing for sure) that 3 of my hosts (Venus, Mars and indeed, Pluto) got confused and created a split personality (second host entry of the same name) when I switched them to temporarily use their Wi-Fi interface rather than the Ethernet interface for a short while, as I needed to run them away from switch access. This was easily resolved by merging the hosts by name, which at the time, worked.

Anyway, being the same host it'd be convenient to have the 2 versions combined. But if it's not, it's hardly the end of the world, it's just confusing as to how it happened and I like solving problems if I can.
18) Message boards : Number crunching : Cant merge hosts. But they're the SAME host... (Message 1700820)
Posted 12 Jul 2015 by Profile WoodgieProject donor
I'm not at a computer at the moment but I'm pretty sure they are the machine(s) I'm on about. More investigation, then, when I get home.

The one with the 2 x 8800 is a proper new machine I set up. An older MacPro with an nVidia GT 120 and an 8800 GT (BOINC always reports the newest card as being all cards, it seems)
19) Message boards : Number crunching : Cant merge hosts. But they're the SAME host... (Message 1700688)
Posted 12 Jul 2015 by Profile WoodgieProject donor
So yesterday I had to rebuild Pluto as I managed to break something (un BOINC-related). I thought the backend would either - as in the past when I've had to do this - pick up that it was the same machine or allow me to merge the two instances of the host.

Not today.

What I'm being told is:

Processing pluto.local Can't merge host 7423311 into 7587350 - they're incompatible


Incompatible? They're literally the same computer with the same version of the OS...

The LAN IP address may have changed due to DHCP but that's about it.

Thoughts?
20) Message boards : Number crunching : 'rm -rf *' considered harmful (Message 1698423)
Posted 4 Jul 2015 by Profile WoodgieProject donor
...In a fit of heat- or svn-frustration-induced fever today I typed the fateful command 'rm -rf *' thinking that I was connected to another computer in another window in another workspace and not in my $HOME directory. :-( By the time I realised that the command was taking longer than it should, and hit Ctrl-C...


Ivan, my friend, you are not the first to do that and I doubt very much you will be the last. I have done the same. On a client's server... Unsurprisingly, that one very nearly cost me my job.

No matter how experienced you get and how much you you think you know, the universe knows more and will sideswipe you with the tiniest of reasons :)

At least it's all easy enough to get back up and running again, if a bit time consuming.


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