Electrical Service Rates - Page 5

xilman · 2017-09-27, 16:53

Quote:

Originally Posted by petrw1

I have a 4 port KVM switch in the basement so that is my self imposed limit (and to keep my nuclear reactor from overheating)

Wimp. Or wuss if you're reading this out in The Colonies.

Around 15 years ago I flood-filled the house with CAT-5. There is a 24-port GBe switch and 24-port patch panel in my study. If there aren't enough physical sockets in any particular room a secondary switch and either of two wireless LANs provide a degraded but adequate service.

There is a 8-port KVM in my study but that's a hysterical arty fact from the days before the cabling was installed. Only one port is still used and that's very much for emergency backup. Everything else is done over ssh.

petrw1 · 2017-09-27, 17:42

Quote:

Originally Posted by xilman

Wimp. Or wuss if you're reading this out in The Colonies.

Around 15 years ago I flood-filled the house with CAT-5. There is a 24-port GBe switch and 24-port patch panel in my study. If there aren't enough physical sockets in any particular room a secondary switch and either of two wireless LANs provide a degraded but adequate service.

There is a 8-port KVM in my study but that's a hysterical arty fact from the days before the cabling was installed. Only one port is still used and that's very much for emergency backup. Everything else is done over ssh.

Agreed my KVM is old but it allows me to access all 4 PCs with 1 K and V and M.

So how many computers/GPUs in your house?
And what is your power bill like?

petrw1 · 2017-09-27, 17:49

Quote:

Originally Posted by axn

You're looking at the wrong column. It is showing 139.7 GDay/day. Are you sure you are getting 500 GDay/day from 750? (In fact, even the 780 is showing as 348.9 GDay/day -- maybe a 780 Ti).

You should consider 10xx series for your upgrades.

Yes a GTX-750Ti and ... 450 a day TF 73+ bits; over 500 a day TF 67-69 bits.
I'd give the exact specs except it is dead.

My 780Ti is over 500 sometimes close to 600 and the chart has it under 500.

If I limit the search to 750 I see this Oops yes I looked at the wrong column.

xilman · 2017-09-27, 19:19

Quote:

Originally Posted by petrw1

Agreed my KVM is old but it allows me to access all 4 PCs with 1 K and V and M.

So how many computers/GPUs in your house?
And what is your power bill like?

Let's see ...

Five desktop/mini-towers on 24/7. Sundry laptops / tablets / SBCs on a as-required basis. There used to be more but I've cut back recently.

At least 9 months of the year I use electrical fan heaters to keep my house warm. Perhaps 1 or 2 weeks of the year I could use air conditioning but, in practice, I just open a few windows. At least 5 months per annum supplementary heating is provided by a gas boiler (which provides hot water all year round) and a wood-burning stove.

Given that I live in the subarctic, free computation is a valuable by-product of my heating system.

Quote:

Originally Posted by petrw1

1 K and V and M allows me to access all my computers.

That is what X11 / VNC / RDP over ssh is for.

paulunderwood · 2017-09-27, 19:26

I heat my small abode with computers. I also have a summer-long sauna. Today is the first day of wearing a shirt for me. I have some more computers primed for winter.

axn · 2017-09-28, 04:30

Quote:

Originally Posted by petrw1

Yes a GTX-750Ti and ... 450 a day TF 73+ bits;

A putative 150 Gd/d card yielding 450 Gd/d is not possible. The numbers are consistent with an OC'ed 780, though. Regardless, whether you call it 750 or 780 or whatever, it will _not_ be running @ 60w. Expect it to consume between a 780 & 780 Ti (they are both rated at 250, but actuals will be different). TANSTAAFL.

EDIT:- Regardless of this discussion, one technique to pick a good card - Sort the list by Gd/d/W (http://www.mersenne.ca/mfaktc.php?sort=gpw) and traverse down the list until you find something you're happy with.

petrw1 · 2017-11-29, 21:21

Quote:

Originally Posted by axn

A putative 150 Gd/d card yielding 450 Gd/d is not possible. The numbers are consistent with an OC'ed 780, though. Regardless, whether you call it 750 or 780 or whatever, it will _not_ be running @ 60w. Expect it to consume between a 780 & 780 Ti (they are both rated at 250, but actuals will be different). TANSTAAFL.
.

Ok seems my memory is underpowered; my GPU is NOT overpowered.

I do NOT have a GTX-750 and 780
but rather a GTX-970 and 980.

science_man_88 · 2017-11-29, 22:12

15.063 cents per kilowatt hour is a new normal for Nova scotia.

kladner · 2017-11-30, 00:15

Quote:

Originally Posted by axn

EDIT:- Regardless of this discussion, one technique to pick a good card - Sort the list by Gd/d/W (http://www.mersenne.ca/mfaktc.php?sort=gpw) and traverse down the list until you find something you're happy with.

I am amazed to see that a GTX1060 outruns a Titan Black for less than half the power.

LaurV · 2017-12-02, 06:47

Titans are not good for TF. We always said that using 580/780/Titans for TF is a waste of resources. Where this cards were good (the 580/780) and where Titans are still good, is their DP ratio, so they are very good at LL tests. The Titan is still one of the fastest single-chip card for LL. Other cards like the Z and some AMD have two (or more) chips, which causes them to have a better output, but you can not make a single LL test faster. For example, say a Black will finish some LL test in 10 days, making 2 tests in 20 days, then a Z will finish those two tests in 14 days, which is much faster, but if you run a single test with Z, it will still take 12-14 days. That is because Z is in fact two underclocked (to keep the temperature and energy consumption in check) Titan chips. And if you add more Titan chips, you may be able to run more tests, but you can not make a single test faster, even if those chips do parts of a single iteration, at the end they must put all the results in agreement, and that is slower that one chip would do the complete iteration by itself.

mackerel · 2017-12-02, 12:33

Back to the original topic of this thread... I have just locked in my energy pricing for the next year as my old plan was coming to and end.

I am on 9.965p/kWh (US$0.13/kWh) with 20.545p/day ($0.27/day) standing charge. Those days are over, no one comes close to that now. Best I found is 11.96p/kWh (US$0.16/kWh) with 23p/day ($0.31/day) standing charge. Old supplier best renewal offer was near enough 15p/kWh so, just no!

Looks like I'm using just over 10MWh/year... somewhat above average! I think there are 4 use cases for higher electricity consumption in households: distributed computing/mining, tropical fish/reptile keeping, and erm... plant growing apparatus. I fit most of those categories...

2017-09-27, 19:26	#49
paulunderwood Sep 2002 Database er0rr 5×937 Posts	I heat my small abode with computers. I also have a summer-long sauna. Today is the first day of wearing a shirt for me. I have some more computers primed for winter. Last fiddled with by paulunderwood on 2017-09-27 at 19:27

2017-12-02, 06:47	#54
LaurV Romulan Interpreter "name field" Jun 2011 Thailand 41×251 Posts	Titans are not good for TF. We always said that using 580/780/Titans for TF is a waste of resources. Where this cards were good (the 580/780) and where Titans are still good, is their DP ratio, so they are very good at LL tests. The Titan is still one of the fastest single-chip card for LL. Other cards like the Z and some AMD have two (or more) chips, which causes them to have a better output, but you can not make a single LL test faster. For example, say a Black will finish some LL test in 10 days, making 2 tests in 20 days, then a Z will finish those two tests in 14 days, which is much faster, but if you run a single test with Z, it will still take 12-14 days. That is because Z is in fact two underclocked (to keep the temperature and energy consumption in check) Titan chips. And if you add more Titan chips, you may be able to run more tests, but you can not make a single test faster, even if those chips do parts of a single iteration, at the end they must put all the results in agreement, and that is slower that one chip would do the complete iteration by itself. Last fiddled with by LaurV on 2017-12-02 at 06:49

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2017-11-29, 22:12	#52
science_man_88 "Forget I exist" Jul 2009 Dartmouth NS 8,461 Posts	15.063 cents per kilowatt hour is a new normal for Nova scotia.

2017-12-02, 12:33	#55
mackerel Feb 2016 UK 448₁₀ Posts	Back to the original topic of this thread... I have just locked in my energy pricing for the next year as my old plan was coming to and end. I am on 9.965p/kWh (US$0.13/kWh) with 20.545p/day ($0.27/day) standing charge. Those days are over, no one comes close to that now. Best I found is 11.96p/kWh (US$0.16/kWh) with 23p/day ($0.31/day) standing charge. Old supplier best renewal offer was near enough 15p/kWh so, just no! Looks like I'm using just over 10MWh/year... somewhat above average! I think there are 4 use cases for higher electricity consumption in households: distributed computing/mining, tropical fish/reptile keeping, and erm... plant growing apparatus. I fit most of those categories...