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Forum: Hardware 2020-10-29, 23:43
Replies: 6
Views: 139
Posted By ewmayer
Let's see - my OP shows time of 12:32, one hour...

Let's see - my OP shows time of 12:32, one hour earlier than I posted it in term of Pacific Daylight Time. Thus the forum is already displaying Pacific Standard Time in terms of what I currently see....
Forum: Hardware 2020-10-29, 20:32
Replies: 6
Views: 139
Posted By ewmayer
Used XFX Radeon VII For Sale - Works Great

Our 4-GPU desktop open-testframe system detailed in this thread (https://www.mersenneforum.org/showthread.php?t=24979&page=30) was never 100% stable upon addition of the 4th standalone GPU. Back in...
Forum: Hardware 2020-10-27, 20:15
Replies: 34
Views: 2,899
Posted By ewmayer
[I snipped all the link-tracking crud from your...

[I snipped all the link-tracking crud from your URL] That's just the bare CPU ... and I just realized that my "pricier" link is also bare-CPU-4-sale. So your bare-CPU is a far better deal than the...
Forum: Hardware 2020-10-27, 19:54
Replies: 34
Views: 2,899
Posted By ewmayer
Quick update - the wares on offer by the eBay...

Quick update - the wares on offer by the eBay seller linked in the OP are all gone, but the specific model of Phi in question was an older Knights Corner one...
Forum: Mlucas 2020-10-27, 19:27
Replies: 7
Views: 229
Posted By ewmayer
A good suggestion, thanks. The README has been...

A good suggestion, thanks. The README has been updated.

...and the compiler and assembler one is using under said OS. IIRC when George was first beginning to play with the then-new avx-512...
Forum: Lounge 2020-09-02, 21:39
Replies: 1,611
Views: 84,240
Posted By ewmayer
Condolences - alas, 2020 isn't done with you, nor...

Condolences - alas, 2020 isn't done with you, nor with the rest of us. Def. shaping up to be a year many of us would rather forget.
Forum: Lounge 2020-09-02, 21:36
Replies: 4,087
Views: 254,288
Posted By ewmayer
Said slight-relief-bringing wind shift lasted...

Said slight-relief-bringing wind shift lasted only a few hours, hills 1-2mi west of me again vanished behind a curtain of smoke by around noon, more or less the same since then. Despite rising...
Forum: GpuOwl 2020-09-02, 21:19
Replies: 64
Views: 2,830
Posted By ewmayer
Can you fiddle the dedicated-mem-used entry in...

Can you fiddle the dedicated-mem-used entry in that list to show as a %? Then next time you hit a stall - maybe do some p-1-only for a while on the R7 in an effort to trigger the problem - recheck...
Forum: GpuOwl 2020-09-01, 20:43
Replies: 64
Views: 2,830
Posted By ewmayer
@Ken: stalling at the start of p-1 stage 2 sounds...

@Ken: stalling at the start of p-1 stage 2 sounds suspiciously like some kind of mem-alloc failure ... your run diagnostics show stage 2 trying to alloc ~11GB of memory, which should be OK for an R7...
Forum: Lounge 2020-09-01, 20:10
Replies: 4,087
Views: 254,288
Posted By ewmayer
Good article, esp. w.r.to the DoD-style...

Good article, esp. w.r.to the DoD-style private-contracting business model and the attendant perverse financial incentives. And our governor much prefers speechifying about these things - much as he...
Forum: GPU Computing 2020-08-31, 21:21
Replies: 7
Views: 1,888
Posted By ewmayer
How different is the Ubuntu/gpuowl setup...

How different is the Ubuntu/gpuowl setup procedure expected to be for RX580 from that for Radeon VII (https://mersenneforum.org/showthread.php?t=25601)? If the set of diffs between the 2 is not huge,...
Forum: Lounge 2020-08-31, 20:23
Replies: 1,049
Views: 62,977
Posted By ewmayer
Re. "are you in a hurry?" -- Again invoking the...

Re. "are you in a hurry?" -- Again invoking the scene in Young Frankenstein (https://www.imdb.com/title/tt0072431/quotes), erm I mean Young Fronkensteen, where Madeline Kahn's character is ravished...
Forum: Tales From the Crypt(o) 2020-08-31, 01:26
Replies: 264
Views: 32,994
Posted By ewmayer
FT is paywalled but it's easy to find other...

FT is paywalled but it's easy to find other versions of the story:

Musk-backed Neuralink unveils upgraded brain-implant technology (https://www.ft.com/content/fa214593-c7ba-4fb0-93a5-cd35c78abd7a)...
Forum: GpuOwl 2020-08-30, 21:35
Replies: 2,552
Views: 158,813
Posted By ewmayer
In addition to the upload-data-volume issue...

In addition to the upload-data-volume issue detailed in my previous post, I'm finding that on my older Haswell system, which started life as a barebones Sandy Bridge system I bought used from our own...
Forum: Lounge 2020-08-30, 20:45
Replies: 1,049
Views: 62,977
Posted By ewmayer
Not at all - as Sister Logical explained, if they...

Not at all - as Sister Logical explained, if they continued together the stalker was guaranteed to catch them and presumably do unspeakable things to both of them. They were already on the most...
Forum: Lounge 2020-08-30, 20:28
Replies: 1,127
Views: 54,544
Posted By ewmayer
@LaurV: the technique has been used for years...

@LaurV: the technique has been used for years with other viruses (e.g. polio), so before calling BS, perhaps you should read up on it? You start with a big bunch of gloop perhaps containing an...
Forum: Soap Box 2020-08-29, 23:40
Replies: 1,339
Views: 58,612
Posted By ewmayer
Honestly, the "the next Hitler" trope has gotten...

Honestly, the "the next Hitler" trope has gotten really shopworn - and a whole lot of actual Hitler-worthy warmongering has been done in its name. How many countries has the US imperium blown to...
Forum: Astronomy 2020-08-29, 22:56
Replies: 2
Views: 1,245
Posted By ewmayer
Speaking of colo[u]r enhancement, we've been...

Speaking of colo[u]r enhancement, we've been getting spectacular blood-orange moonsets the past several nights here in CA due to all the soot in the atmosphere from the multiple massive wildfires...
Forum: Lounge 2020-08-29, 22:44
Replies: 1,127
Views: 54,544
Posted By ewmayer
The University of Arizona says it caught a dorm's...

The University of Arizona says it caught a dorm's covid-19 outbreak before it started. Its secret weapon: poop....
Forum: Lounge 2020-08-29, 22:23
Replies: 1,049
Views: 62,977
Posted By ewmayer
Logically, she took a longer, roundabout way to...

Logically, she took a longer, roundabout way to reach the convent.


[...and after seeing the goods on offer, indulging in a right royally shagging, logically. ;) Cue the monster-with-pants-down...
Forum: Hardware 2020-08-29, 00:42
Replies: 99
#2
Views: 5,883
Posted By ewmayer
A Cultural History of the Plumber’s Crack...

A Cultural History of the Plumber’s Crack (https://melmagazine.com/en-us/story/a-cultural-history-of-the-plumbers-crack) | MEL Magazine

I see that in the UK...
Forum: Lounge 2020-08-29, 00:32
Replies: 164
Views: 13,745
Posted By ewmayer
Wolf Richter's latest on the Fed's ongoing...

Wolf Richter's latest on the Fed's ongoing program to make a mockery of the word "market", especially of the so-called "free" variety:

The Zombie Companies Are Coming...
Forum: Lounge 2020-08-29, 00:02
Replies: 1,127
Views: 54,544
Posted By ewmayer
SARS-CoV-2 infection of human iPSC-derived...

SARS-CoV-2 infection of human iPSC-derived cardiac cells predicts novel cytopathic features in hearts of COVID-19 patients (https://www.biorxiv.org/content/10.1101/2020.08.25.265561v1) | (preprint)...
Forum: Hardware 2020-08-28, 23:04
Replies: 99
#2
Views: 5,883
Posted By ewmayer
I stand corrected - and note that I forgot to...

I stand corrected - and note that I forgot to include the needed voltage multiplier in my trig terms anyway. So, let's do that: RMS means we need to integrate sin^2 over a full cycle and take the...
Forum: Hardware 2020-08-28, 22:38
Replies: 99
#2
Views: 5,883
Posted By ewmayer
The beauty of AC: when you write '120V' you...

The beauty of AC: when you write '120V' you really mean 'Oscillating from +120V to -120V at 50 or 60Hz', so hooking up one hot wire to one such pulsating voltage (call it A) and another to a...
Showing results 1 to 25 of 1000

 
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