Posts by David Riese
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1) Message boards : Cafe : The Last One to Post Here Wins.... Version 34 (Message 24690)
Posted 13 days ago by Profile David Riese
Thanks for the advice, Mikey and El_Teniente. I'll contemplate the advice and stop with the shop talk, Kathryn!

AND, I am now winning, despite not having enough cash for a Mac-compatible GTX 1050, let alone a Titan! :-)
2) Message boards : Cafe : The Last One to Post Here Wins.... Version 34 (Message 24686)
Posted 15 days ago by Profile David Riese
Hey, Mikey, what is your opinion of the Nvidia GeForce GTX 750Ti? I bought one to upgrade a MacPro 4,1 that didn't have a spare internal power cable (an AMD/ATI 5870 was using both). The 750Ti generated >600K in Collatz credits in the first 24 hours, which compares quite favorably to the ~750K/day generated by an NVIDIA GTX 680 and the ~800K/day generated by an NVIDIA GTX 770. So, from my perspective the GTX 750Ti is an energy efficient way to boost crunching capacity.

On a related question, I have two GTX 960s that require only a single internal power cable. I can't seem to find any more of these units, as my previous vendor (MacVidCards.com) no longer stocks them. Any suggestions? IMHO, a combo 960/750 MacPro 4,1 would be a great solution for a stable workstation/BOINC cruncher.

I am still lusting after a Cubix Xpander Desktop Elite Gen 3 with 4 Titan Xps. But I can't justify spending that much on crunching. :-)
3) Message boards : Cafe : The Last One to Post Here Wins.... Version 30 (Message 24276)
Posted 125 days ago by Profile David Riese
I am confused - who won? Bymark or Kathryn?
4) Message boards : Cafe : The Last One to Post Here Wins.... Version 30 (Message 24238)
Posted 138 days ago by Profile David Riese
Updated list of the WINNERS of the revered, highly-emulated-but-never-duplicated, C@H LOTPHW contest:

29: mikey
28: Steve Dodd
27: KSMarksPsych
26: mikey
25: KSMarksPsych
24: JumpinJohnny
23: Mikey
22: KSMarksPsych
21: mikey
20: Old man
19: David Riese
18: Rymorea
17: [FT/TL]SEARCHER
16: mikey
15: SandJ
14: Geoffrey Yeung
13: SandJ
12: zzuupp
11: mikey
10: zzuupp
9: Odd-Rod
8: mikey
7: BladeD
6: Odd-Rod
5: Tapio
4: BladeD
3: rroonnaalldd
2: Dune Finkleberry
1: Bruce

Lots to report here. Bought a new iMac for my house about a month ago because my old one was gagging on my 40 GB Microsoft Office database (I send, receive, and save a huge amount of email). Guess what - that didn't help at all, probably because the magnetic HDD wasn't speedy enough to deal with all the reading and writing that MS Office was demanding. So, I went back to my tried-and-true solution - bought a 2009 MacPro 4,1 (Dual Quad Core Xeon - 8 physical cores and 16 virtual cores) from eBay and proceeded to upgrade it - 1 TB SSD, 2x 6 TB HDDs, 12 GB of RAM (until the 64 GB I ordered this weekend shows up), AMD HD 5870 GPU (until I have enough money for a better one), and an Edimax USB Wifi Dongle. So far, so good, with two caveats. (1) I have already determined that the USB WiFi dongle is not sufficient - the antenna is not very sensitive (duh!) and the data transfer is choked when I am pushing a lot of data across the USB bus (I have been moving my 4 TB iTunes library from an external HD to one of the internal HDDs). So, I am shopping for a PCI combo WiFi/Bluetooth card. (2) The ongoing incompatibility between C@H and AMD cards in Macs prevents me from using this rig as a C@H cruncher. So, it looks like this rig will have to crunch for Einstein, Seti, and Rosetta.

The two courses I am teaching this semester are populated by smart, engaged students who are eager to learn. And, finally, the Auburn Tigers scored a convincing 41-7 win over the Georgia State Eagles last night. Good time tailgating with friends before the game and my new seats in the corner of the lower bowl of Jordan-Hare stadium are SO much nicer than my old seats in the upper deck, even though my seats in the upper deck were on the 30 yard line. I grew to hate the climb to the upper deck and the amenities in the upper deck (rest rooms and concessions stands) don't compare to what we can access from the lower bowl. #WDE and happy Labor Day weekend!
5) Message boards : Cafe : The Last One to Post Here Wins.... Version 29 (Message 24219)
Posted 143 days ago by Profile David Riese
Winning!
6) Message boards : Number crunching : Supported Platforms (Message 24194)
Posted 154 days ago by Profile David Riese
The Mac thread is pretty quiet, so I thought I would ask this question here:

Does anyone have experience with Collatz or BOINC on pre-2013 MacPro with an NVIDIA GTX 10xx series GPU or a NVIDIA Titan Xp GPU? I am seeing a lot of cheap MacPro 3,1 and 4,1 units on eBay and I am getting the itch to upgrade one into a combo cruncher/work machine.
7) Message boards : Cafe : The Last One to Post Here Wins.... Version 28 (Message 24193)
Posted 154 days ago by Profile David Riese
Now it is MY turn!
8) Message boards : Macintosh : Mac hanging with GPU selected on Collatz Conjecture (Message 24192)
Posted 154 days ago by Profile David Riese
Did you clear up your problem? I have an iMac with the same GPU and CPU and C@H is running fine under BOINC 7.6.34 and OS Sierra 10.12.6. After spending a little time optimizing BOINC, I now run it only when the computer is not being "used" (no keystrokes or mouse usage).

BTW, whereas BOINC is running fine, MS Office (particularly MS Outlook) runs very poorly on my iMac. This could be because it is accessing 4 Gmail accounts, 2 MS Exchange accounts, and >40 GB of email, messages, etc. In fact, my clunky old MacPro 3,1 (2x 2.8 GHz Quad Xeon) runs MS Office SO MUCH better than this iMac. That could be because I have a 1 TB 6g SSD as my primary internal HD, have upgraded to 16 GB of RAM, and have two NVDIA GPUs installed (a GTX 960 and a GT 120). :-)
9) Message boards : Cafe : The Last One To Post Wins...Version 27 (Message 24150)
Posted 173 days ago by Profile David Riese
Been a while since I've been here, so I decided to update the list of winners.

26: mikey
25: KSMarksPsych
24: JumpinJohnny
23: Mikey
22: KSMarksPsych
21: mikey
20: Old man
19: David Riese
18: Rymorea
17: [FT/TL]SEARCHER
16: mikey
15: SandJ
14: Geoffrey Yeung
13: SandJ
12: zzuupp
11: mikey
10: zzuupp
9: Odd-Rod
8: mikey
7: BladeD
6: Odd-Rod
5: Tapio
4: BladeD
3: rroonnaalldd
2: Dune Finkleberry
1: Bruce

Been pretty busy since my last visit. Coordinated the construction of a new research building here at Auburn and helped a client win a case heard by the US Patent and Trial Appeal Board. Also started rolling out a 5-year accelerated BS-MS degree program in Pharmaceutical Sciences at Auburn in partnership with 9 universities in the People's Republic of China. But, most importantly, it is 35 days, 1 hour, and 30 minutes until we kick off the 2017 season for the Auburn Tigers football team (War Eagle) and it is 42 days, 22 hours, and 25 minutes until we kick off the 2017 season for the Green Bay Packers football team (Go Pack Go). And, I am winning!
10) Message boards : Cafe : The Last One to Post Wins! -- Version 26 (Message 23787)
Posted 359 days ago by Profile David Riese
NVIDIA finally posted updated drivers for Mac OS X v10.11.x and I have two of my most powerful C@H crunchers processing GPU tasks again - was waiting for a week since OS X was updated to v10.11.6! It was particularly annoying because the generic OS X video driver supports only one of the three monitors for my main office computer. Darn tough to transition from three 32" monitors back to only one, especially with my crummy eyesight - I am running those monitors at 1080p and I still have to sit less than 3 feet away in order to read the text.
11) Message boards : Cafe : The Last One to Post Wins! -- Version 26 (Message 23785)
Posted 359 days ago by Profile David Riese
Good luck, Kathryn! Hope that it all turns out for the best!
12) Message boards : Cafe : The Last One to Post Wins! -- Version 26 (Message 23734)
Posted 371 days ago by Profile David Riese
Just returned from a wonderful 3+ weeks of traveling, including two Green Bay Packers games, two college basketball games, Christmas with the in-laws in Indiana, New Years Eve in Detroit, and meetings with US Federal government officials regarding administration of Federally-sponsored research at US academic institutions. Had a great time, but I am delighted to be back at home and back in the office. Took all day, but finally got one of my main Collatz crunchers working properly. Hope to see my RAC return to normal shortly. And, of course, now I am winning!
13) Message boards : Cafe : The Last One to Post Wins! -- Version 26 (Message 23590)
Posted 397 days ago by Profile David Riese
Been doing a bit traveling recently. Went to Oahu for the events commemorating the 75th anniversary of the attack on Pearl Harbor, then spent a little time at the World Surfing Championship Pipeline Masters event on the north shore of Oahu. Traveled to Volcanoes National Park on Hawai'i to see the bubbling lava lake at Halema‘uma‘u but the direction of the wind prevented me from seeing the lava enter the ocean at Kamokuna/Kalapana. Made it to the visitor's information center at the 9200' elevation of Mauna Kea, but ice on the trail prevented me from traveling to the 14,000' summit. This was disappointing, but not surprising, as there been several major snowstorms at Mauna Kea recently. Went to Lana'i to visit a feral/domesticated cat sanctuary (500+ cats, one of whom I am now sponsoring), then returned to Hawai'i for some boogie boarding at Kua Bay Beach. Then, traveled for 17+ hours to DC for two days of work. All told, 12 plane flights in 12 days. Had a wonderful time, but I am very glad to be home - I need to catch up on some laundry and other domestic duties before the Christmas holiday. And, of course, now that I re-established connectivity to the internet, I am winning!
14) Message boards : Number crunching : Badges (Message 23589)
Posted 397 days ago by Profile David Riese
According to BOINCstats and the current badging scheme, here are the number of users that have earned a particular "rank" (badge) or who have earned at least that particular "rank" (in parentheses):

100B - 0
50B - 0
45B - 0
40B - 0
35B - 0
30B - 0
25B - 0
20B - 0
15B - 1
10B - 1 (2)
6B - 6 (8)
4B - 10 (18)
2B - 21 (39)
500M - 222 (261)
100M - 946 (1207)
20M - 2326 (3533)
5M - 3419 (6952)
1M - 5858 (12810)
100k - 10035 (22845)
"Unranked" - 38730 (61575)

Plotting the number of individuals that hold a particular "rank" or hold at least that particular "rank" versus the number of credits needed to earn that "rank" creates curves with some minor clumping and gapping. So, I tried using roughly half-log steps between each "rank", as depicted below. The curves look a bit smoother this way, plus an additional 5893 individuals earn a "rank" (badge) because I set the threshold for the lowest "rank" (badge) to 30K, rather than 100K Nonetheless, earning a badge is still not for everyone, as only 45% of users would do so under this proposed scheme.

100B - 0
30B - 0
10B - 2
3B - 21 (23)
1B - 105 (128)
300M - 300 (428)
100M - 779 (1207)
30M - 1509 (2716)
10M - 2409 (5125)
3M - 3551 (8676)
1M - 4134 (12810)
300K - 4938 (17748)
100k - 5097 (22845)
30K - 5893 (28738)
"Unranked" - 32837 (61575)

I was unable to figure out how to post the curves to the thread, but please PM me if you want to see them; you can find my email address by googling my name and the name of the team to which I belong.

Finally, I have absolutely no opinion as to the design of the badges, just the thresholds applied to earn each successive badge.
15) Message boards : Cafe : The Last One to Post Wins! -- Version 25 (Message 23320)
Posted 435 days ago by Profile David Riese
Now that the SSL mess has been resolved, I need to get two more C@H crunchers (http://boinc.thesonntags.com/collatz/show_host_detail.php?hostid=137958 and http://boinc.thesonntags.com/collatz/show_host_detail.php?hostid=130266) back on track tomorrow morning. Then, traveling to DC tomorrow afternoon for more fun in our nation's capitol. In the meantime, I am winning!
16) Message boards : News : SSL Certificate Replace (again) (Message 23319)
Posted 435 days ago by Profile David Riese
Thanks to all, particularly Jon and fractal, for solving this vexing problem! Can't wait to get back to work to see if I can bring C@H back to life on http://boinc.thesonntags.com/collatz/show_host_detail.php?hostid=137958 and http://boinc.thesonntags.com/collatz/show_host_detail.php?hostid=130266.
17) Message boards : Cafe : The Last One to Post Wins! -- Version 25 (Message 23216)
Posted 438 days ago by Profile David Riese
Now that C@H is back up, I am winning. So is the Auburn Tigers football team. Alas, the Green Bay Packers are not.
18) Message boards : Cafe : The Last One to Post Wins! -- Version 24 (Message 23115)
Posted 457 days ago by Profile David Riese
Mikey, yes, we installed a porcelain tile product that looks like planks of wood. We used very narrow, dark grout lines to accentuate the wood look. We like the look and we LOVE the durability and ease of care. Congratulations on the new beach home - I think that this product will work great in that environment. (Indeed, my wife and I spent Sunday evening sweeping up the sand that we dragged into the house after our weekend trip to the beach at Perdido Key, FL.) And, glad to hear that the new house wasn't damaged by the hurricane. Oddly enough, the hurricane improved our beach trip, as the storm surge cleaned almost all of the vegetation off the beach, leaving behind nice, clean, white sand.
19) Message boards : Cafe : The Last One to Post Wins! -- Version 24 (Message 23071)
Posted 467 days ago by Profile David Riese
Washing the dust off my hands ...

Delighted to report that in the last week I replaced the AMD Radeon HD 5870 GPU in one of my ancient (early 2008) MacPro 3,1 units with an NVIDIA GeForce GTX 680 and the AMD Radeon HD 5870 GPU in another MacPro 3,1 with an NVIDIA GeForce GTX 770. This allowed me to upgrade both units from OS X 10.8 to OS X 10.11 and should yield a substantial bump in C@H RAC.

Now I am trying to figure out whether I can get enough money for my pulled GPUs (two AMD HD 5770s and two AMD HD 5870s) to buy a used iMac 12,2 (27" w/quad core i7 and an AMD HD 6970M). Probably won't be able to use it as a C@H cruncher, but it will be a nice replacement for my iMac 11,2 (21.5", dual core i3, AMD HD 4670) in my home office.

Got a lot of chores to do around the house. Most are related to the fact that we recently replaced all of the hardwood flooring and carpeting, mostly with a tile product that looks like wood. Love the look and durability of the new product. However, we are still moving furniture, books, knickknacks, and clothing out of the attic and garage and back into the house. Can't wait to get the garage back - still have all three of our vehicles in the driveway, although my tractor (John Deere x475 with bagger and model 45 loader) is back in the garage. Got to have priorities, you know - can't leave the tractor sitting outside!

But for now, I am winning!
20) Message boards : Cafe : The Last One to Post Wins! -- Version 23 (Message 22872)
Posted 515 days ago by Profile David Riese
No MS Windows in my life. All OS X 10.8-10.11. My goal for the fall is to put NVIDIA GPUs in my last two OS X 10.8 PowerMac 3,1 (early 2008) machines so that I can upgrade them to 10.11. Unfortunately, I can no longer find any new GTX 680 or 960 cards, so it looks like I am going to have to take my chances on Ebay. Ugh. But at least I am winning!


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