[ANN] cudaMiner & ccMiner CUDA based mining applications [Windows/Linux/MacOSX] - page 732.

cbuchner1

hero member

Activity: 756

Merit: 502

I will never post pictures again when everybody feels like changing my design Wink

Hot air comes out at both ends of the card. About twice as much at the rear though.
It is futile to PUSH against it with a fan as it will slow down the outflow of hot air
and possibly lead to hot air rebreathing.

The only feasible way was to push in cold air from the top, and additionally
sucking out some air (a mix of hot & cold) from the front.

The fan combo works, no longer am I thermally throttled.

This all is moot anyway when my risers get here.

Christian

myagui

legendary

Activity: 1154

Merit: 1001

Quote from: djm34 on March 04, 2014, 06:41:52 AM

Quote from: cbuchner1 on March 04, 2014, 06:33:59 AM

Quote from: myagui on March 04, 2014, 06:03:11 AM

Christian,

Noticed that picture with your triple card setup with a fan on top and the PSU on the rear of the cards.
If I'm seeing it right and those are blower type cards, I have a suggestion for you: maybe try having the fan on the rear of the cards, instead of the PSU, and blowing cold air *into* the cards. I think the "titan" blower cooler design is particularly effective with an airflow that runs from rear to front (in other words, from near the pci-e power connectors into the monitor connectors).

Cheers,
Myagui

hot air comes out the rear end of the cards with the intensity of a 800 Watts blowdryer.

The purpose of the fan/PSU combination is to make cool air move in the space between the
cards, so the cards fans can pick THAT up and force it through the heat sink. The space is
narrow, so the more air I get into the space, the better.

The problem is even worse with the 3 ASUS MARS cards.

Christian

I don't know... the psu seems to sucks air away from the fans of the cards.
I would tend to agree with myagui.
Put a fan in push where the psu is, and put another fan in pull on top on of the other end of the cards.
This way you'll get fresh air circulating between the cards.

I think Christian and I refer to different "rear" locations. I just double-checked my 770 (titan cooler also), and it definitely needs to "suck" in cold air from the section near the PCI-e power connectors, and it will "blow" out hot air around the monitor connectors, just the small hairdryer type experience as described. It certainly does *not* blow out hot air at the section nearby the PCIe slots (if it would do that, it would be nearly impossible to work out a case design that would actually work in favor of these cooler designs).

The PSU as pictured, is causing a negative air pressure that works against the card's fan. Anyways, looks like a quick test given you have all the parts just laying around freely (living on the edge, heh!).

Cheers!

djm34

legendary

Activity: 1400

Merit: 1050

Quote from: cbuchner1 on March 04, 2014, 06:33:59 AM

Quote from: myagui on March 04, 2014, 06:03:11 AM

Christian,

Noticed that picture with your triple card setup with a fan on top and the PSU on the rear of the cards.
If I'm seeing it right and those are blower type cards, I have a suggestion for you: maybe try having the fan on the rear of the cards, instead of the PSU, and blowing cold air *into* the cards. I think the "titan" blower cooler design is particularly effective with an airflow that runs from rear to front (in other words, from near the pci-e power connectors into the monitor connectors).

Cheers,
Myagui

hot air comes out the rear end of the cards with the intensity of a 800 Watts blowdryer.

The purpose of the fan/PSU combination is to make cool air move in the space between the
cards, so the cards fans can pick THAT up and force it through the heat sink. The space is
narrow, so the more air I get into the space, the better.

The problem is even worse with the 3 ASUS MARS cards.

Christian

I don't know... the psu seems to sucks air away from the fans of the cards.
I would tend to agree with myagui.
Put a fan in push where the psu is, and put another fan in pull on top on of the other end of the cards.
This way you'll get fresh air circulating between the cards.

cbuchner1

hero member

Activity: 756

Merit: 502

Quote from: myagui on March 04, 2014, 06:03:11 AM

Christian,

Noticed that picture with your triple card setup with a fan on top and the PSU on the rear of the cards.
If I'm seeing it right and those are blower type cards, I have a suggestion for you: maybe try having the fan on the rear of the cards, instead of the PSU, and blowing cold air *into* the cards. I think the "titan" blower cooler design is particularly effective with an airflow that runs from rear to front (in other words, from near the pci-e power connectors into the monitor connectors).

Cheers,
Myagui

hot air comes out the rear end of the cards with the intensity of a 800 Watts blowdryer.

The purpose of the fan/PSU combination is to make cool air move in the space between the
cards, so the cards fans can pick THAT up and force it through the heat sink. The space is
narrow, so the more air I get into the space, the better.

The problem is even worse with the 3 ASUS MARS cards.

Christian

jk_14

legendary

Activity: 1292

Merit: 1000

Quote from: cbuchner1 on March 04, 2014, 05:52:18 AM

Quote from: jk_14 on March 04, 2014, 04:56:47 AM

Quote from: cbuchner1 on March 03, 2014, 01:19:20 PM

...

Hi, Christian

It is impossible to run cudaminer via screen:
screen ./cudaminer
[screen is terminating]

could you try running pooler's cpuminer in screen, and if it terminates too ask for an improvement in his code (pooler's cpuminer has its own thread on bitcointalk). I can then just merge his fixes in Wink

Christian

OK

myagui

legendary

Activity: 1154

Merit: 1001

Christian,

Noticed that picture with your triple card setup with a fan on top and the PSU on the rear of the cards.
If I'm seeing it right and those are blower type cards, I have a suggestion for you: maybe try having the fan on the rear of the cards, instead of the PSU, and blowing cold air *into* the cards. I think the "titan" blower cooler design is particularly effective with an airflow that runs from rear to front (in other words, from near the pci-e power connectors into the monitor connectors).

Cheers,
Myagui

cbuchner1

hero member

Activity: 756

Merit: 502

Quote from: jk_14 on March 04, 2014, 04:56:47 AM

Quote from: cbuchner1 on March 03, 2014, 01:19:20 PM

...

Hi, Christian

It is impossible to run cudaminer via screen:
screen ./cudaminer
[screen is terminating]

could you try running pooler's cpuminer in screen, and if it terminates too ask for an improvement in his code (pooler's cpuminer has its own thread on bitcointalk). I can then just merge his fixes in Wink

Christian

rahrahrah

full member

Activity: 140

Merit: 100

Quote from: frontier204 on March 03, 2014, 07:12:52 PM

Quote from: rahrahrah on March 03, 2014, 06:33:39 PM

Quote from: rahrahrah on March 03, 2014, 10:52:47 AM

Quote

2014-03-03 15:45:15] GPU #0: cudaError 30 (unknown error) calling 'cudaStreamQu
ery(context_streams[stream][thr_id])' (D:/Christian/Documents/Visual Studio 2010
/Projects/CudaMiner/salsa_kernel.cu line 958)

[2014-03-03 15:45:15] GPU #0: cudaError 30 (unknown error) calling 'cudaStreamWa
itEvent(context_streams[stream][thr_id], context_serialize[(stream+1)&1][thr_id]
, 0)' (D:/Christian/Documents/Visual Studio 2010/Projects/CudaMiner/salsa_kernel
.cu line 946)

[2014-03-03 15:45:15] GPU #0: cudaError 30 (unknown error) calling 'cudaMemcpyAs
ync(hash, context_hash[stream][thr_id], mem_size, cudaMemcpyDeviceToHost, contex
t_streams[stream][thr_id])' (D:/Christian/Documents/Visual Studio 2010/Projects/
CudaMiner/sha256.cu line 446)

When Cudaminer does this, attempting to mine afterwards results in a very very low hashrate (usually ~27KH/s on Scrypt). Is there anyway to resolve this without having to reboot the computer?

Any ideas?

Check you clock speeds after CudaMiner errors out. When I get errors out of CudaMiner, my GPU goes to "2D" clocks and gets locked there. Another way to get out of that mess is to launch Device Manager and then disable and re-enable the offending GPU.

Thanks. Enabling/disabling the GPU should be possible and scriptable I think.

ManIkWeet

full member

Activity: 182

Merit: 100

Quote from: djm34 on March 04, 2014, 05:17:02 AM

Quote from: ManIkWeet on March 04, 2014, 05:10:30 AM

A little update on HelixCoin: Dead as hell!
I made not a single cent from it

can't be worst than gpucoin (made millions which evaporate)

I guess I atleast still have some bytes on my harddrive Tongue

djm34

legendary

Activity: 1400

Merit: 1050

Quote from: ManIkWeet on March 04, 2014, 05:10:30 AM

A little update on HelixCoin: Dead as hell!
I made not a single cent from it

can't be worst than gpucoin (made millions which evaporate)

gfgrimm

newbie

Activity: 21

Merit: 0

Quote from: cbuchner1 on March 03, 2014, 12:48:03 PM

Those with hash rate problems on their newly acquired 750 Ti's: please also try with a 32 bit cudaminer build and compare...

Tried x86 cudaminer with my six cards in W7x64. Peaked a little higher than on x64. I was looking at 1740-1750, with x86, it will peak from time to time at 1770

ManIkWeet

full member

Activity: 182

Merit: 100

A little update on HelixCoin: Dead as hell!
I made not a single cent from it

gfgrimm

newbie

Activity: 21

Merit: 0

Quote from: rahrahrah on March 03, 2014, 10:02:43 AM

Quote from: gfgrimm on March 03, 2014, 07:58:13 AM

6x 750 Ti's (OC'd to stable + BIOS Power Mod)

Pretty please could you edit your post to include the exact make and model of your cards? It helps other people greatly

Thank you!

Will update that post now.

gfgrimm

newbie

Activity: 21

Merit: 0

Quote from: cbuchner1 on March 03, 2014, 08:10:32 AM

Quote from: gfgrimm on March 03, 2014, 07:58:13 AM

My feeling is that I'm leaving about 10-30 kH/s per card on the table because of x1 slots / risers.

this will be fixed at the software level soon'ish. I will be using risers myself, so it's in my best interest to fix it.

Christian

This is great news, thank you, Christian.

jk_14

legendary

Activity: 1292

Merit: 1000

Quote from: cbuchner1 on March 03, 2014, 01:19:20 PM

...

Hi, Christian

It is impossible to run cudaminer via screen:
screen ./cudaminer
[screen is terminating]

I have made a small investigation (see below),

Could you make a little code improvement, because now the only way to use cudaminer with screen
is to run pure screen, and execute cudaminer from screen session. It works fine.
But if you want to have the same, but executed from shell script
- there is a SIGHUP signal, which terminates screen completely.

It would be great do have screen <-> cudaminer full interoperability.

Regards
JK

root@linux:/opt/miners/cudaminer# gdb screen
GNU gdb (GDB) 7.6.1-ubuntu
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
...
Reading symbols from /usr/bin/screen...(no debugging symbols found)...done.
(gdb) set args ./cudaminer
(gdb) run
Starting program: /usr/bin/screen ./cudaminer
[screen is terminating]

Program received signal SIGHUP, Hangup.
0x00007fee0f23d7e0 in __pause_nocancel () at ../sysdeps/unix/syscall-template.S:81
81 ../sysdeps/unix/syscall-template.S: No such file or directory.
(gdb) quit
A debugging session is active.

   Inferior 1 [process 7562] will be killed.

Quit anyway? (y or n) y
root@linux:/opt/miners/cudaminer# ./cudaminer
   *** CudaMiner for nVidia GPUs by Christian Buchner ***
   This is version 2014-02-18 (beta)
   based on pooler-cpuminer 2.3.2 (c) 2010 Jeff Garzik, 2012 pooler
   Cuda additions Copyright 2013,2014 Christian Buchner
   LTC donation address: LKS1WDKGED647msBQfLBHV3Ls8sveGncnm
   BTC donation address: 16hJF5mceSojnTD3ZTUDqdRhDyPJzoRakM

SavellM

sr. member

Activity: 305

Merit: 250

Thanks mate

ghur

full member

Activity: 154

Merit: 100

Quote from: SavellM on March 04, 2014, 02:51:16 AM

Quote from: cbuchner1 on March 03, 2014, 07:44:41 PM

Quote from: SavellM on March 03, 2014, 05:31:53 PM

Hey Christian.

Quick question, can I use Cudaminer on something like [Suspicious link removed]?

Do I just set it up like normal and bobs your uncle?

well your posting isn't really clear when your URL gets replaced by [Suspicious link removed].

And what on earth does the second sentence mean? My uncle has no boobs Wink

Christian

Stupid thing.
It was a link to hashcows.

Will cudaminer work with multi-pool mining?

Yes. But if you want profit hashcows isn't the pool you want to turn to

Try clevermining, middlecoin or wafflepool. Probably in that order.

SavellM

sr. member

Activity: 305

Merit: 250

Quote from: cbuchner1 on March 03, 2014, 07:44:41 PM

Quote from: SavellM on March 03, 2014, 05:31:53 PM

Hey Christian.

Quick question, can I use Cudaminer on something like [Suspicious link removed]?

Do I just set it up like normal and bobs your uncle?

well your posting isn't really clear when your URL gets replaced by [Suspicious link removed].

And what on earth does the second sentence mean? My uncle has no boobs Wink

Christian

Stupid thing.
It was a link to hashcows.

Will cudaminer work with multi-pool mining?

I_M

full member

Activity: 135

Merit: 100

Quote from: Fior Sirtheoir on March 04, 2014, 01:44:03 AM

New to this keep getting a "stratum authentication fail" tried on 3 different pools so I am not sure what I am doing incorrect, here is one .bat example:

cudaminer.exe -r 10 -R 30 -T 30 -H 1 -i 0 -m 1 -d 0 -l L32x8 --no-autotune -o stratum+tcp://stratum-east.hashfaster.com:3333 -u fior -p x

Where is the problem? I am also using dual 9800 GTX (I will upgrade here soon just want to get the learning curb out of the way a bit more) so if you see any other issue feel free.

-u fior -p x

Should probably be:

-u fior.workername -p x

Where workername is the name of the worker you set up on the pool.

Fior Sirtheoir

newbie

Activity: 38

Merit: 0

New to this keep getting a "stratum authentication fail" tried on 3 different pools so I am not sure what I am doing incorrect, here is one .bat example:

cudaminer.exe -r 10 -R 30 -T 30 -H 1 -i 0 -m 1 -d 0 -l L32x8 --no-autotune -o stratum+tcp://stratum-east.hashfaster.com:3333 -u fior -p x

Where is the problem? I am also using dual 9800 GTX (I will upgrade here soon just want to get the learning curb out of the way a bit more) so if you see any other issue feel free.

Topic: [ANN] cudaMiner & ccMiner CUDA based mining applications [Windows/Linux/MacOSX] - page 732. (Read 3426976 times)