Posts by HAL9000


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1) Message boards : Number crunching : Win8 delete admin password (Message 1504898)
Posted 2 hours ago by Profile HAL9000
I use this tool to reset passwords on machines at work when people leave.
http://pogostick.net/~pnh/ntpasswd/
2) Message boards : Number crunching : Panic Mode On (88) Server Problems? (Message 1504772)
Posted 5 hours ago by Profile HAL9000
Pretty common response after weekly maintenance.

Not since the move to the Colocation facility.

I still see this after maintenance, but it goes away much faster since the move.
3) Message boards : Number crunching : Panic Mode On (88) Server Problems? (Message 1504434)
Posted 1 day ago by Profile HAL9000
Hmm..Uploads are fine but no new downloads..

Scheduler request failed:HTTP internal server error

and

Scheduler request failed: Failure when receiving data from the peer
Project Communication failed:attempting to access to reference site
Internet access OK - project servers may be temporarily down


those from 2 of my computers...maybe just a temporary hiccup after servicing the servers?

Pretty common response after weekly maintenance.
4) Message boards : Number crunching : Radeon R7 250X or 260X good enough for crunching? (Message 1504427)
Posted 1 day ago by Profile HAL9000
Can you link to what a system using GPU looks like please?

This system is using its built in Intel GPU with the stock applications. In the Applications column you can see "SETI@home v7 v7.03 (opencl_intel_gpu_sah)"
5) Message boards : Number crunching : Correct delete of HDD before new OS install? (Message 1504421)
Posted 1 day ago by Profile HAL9000
It's been a while, but if you boot directly from the install CD, does it not also give you the option of deleting the partitions from the target HD?

If you select custom installation you have the option for repartitioning and formatting of the drive.
There should also be an option on the initial screen, repair or soemthing liek that, then you can get to a command prompt where diskpart can be used.
diskpart
select disk 0
clean
Then you have a newly completely blank drive.
6) Message boards : Number crunching : New machine vs old machine memory? (Message 1504136)
Posted 2 days ago by Profile HAL9000
Concerning the AV, why didn't I think of that. I'll have to keep an eye on BOINC when the AV does its daily scan at 03:00. If there is any conflict I can always snooze BOINC until the scan is done as it only take a couple of minutes to do.

I was thinking the AV might just suck up a large amount of memory and hold onto it. Causing the memory for the BOINC apps to start swapping. The AV IS uses at work holds on to about 2GB all of the time it seems.
7) Message boards : Number crunching : Radeon R7 250X or 260X good enough for crunching? (Message 1504134)
Posted 2 days ago by Profile HAL9000
Both choices are good low powered card. I am thinking about the R7 250X to replace my HD5750 myself.
You can also use the Intel HD 2500 in your i5 to do work with if you wish.
8) Message boards : Number crunching : New machine vs old machine memory? (Message 1504091)
Posted 2 days ago by Profile HAL9000
Any configuration of memory will work. Things are just optimum when you have all channels populated and in use. Which is 3 for the i7-950 and 2 for the i7-4770. Being down a channel just means you will be limited in memory bandwidth, but will most certainly work.


Thanks @HAL9000, limited bandwidth was already taken into consideration, my major concern was the amount of free ram with everything running. Right now the i7/950 with 4GB only has 1 GB free. This build has always been a practical exercise in limited finances

Ah okie. Most of my machines I run only have 4GB. My HTPC running 8 CPU + a GPU seemed to cope just fine with 4GB while running BOINC & my other background video things on it.
Depending on how you will be running your tasks I expect BOINC & the apps will probably use 400-600MB.
If that machine is running AV it can eat up nearly all of the RAM when it does a scan. So that is the only thing I would be concerned about.
9) Message boards : Number crunching : New machine vs old machine memory? (Message 1504089)
Posted 2 days ago by Profile HAL9000
Any configuration of memory will work. Things are just optimum when you have all channels populated and in use. Which is 3 for the i7-950 and 2 for the i7-4770. Being down a channel just means you will be limited in memory bandwidth, but will most certainly work.
10) Message boards : Number crunching : Multiple workunits using "blessed" Astropulse/MB app (Message 1504086)
Posted 2 days ago by Profile HAL9000
Since no one has answered yet, I'll have a go. I'm not sure there is any plan to modify the basic bonic program to allow more than 1 task per GPU, but that doesn't mean you can't modify it yourself to do that. If you don't want to use the Lunatics then you could just write a simple cc_config.xml and place that in the hidden Bonic data directory. I'm not familiar with Radeon GPUs so I can't add anything there. I would think they would work the same, if not, someone here will say so. For the simple CC_config.xml, i'm posting one that Arkayn posted on another thread


<app_config>
<app>
<name>setiathome_v7</name>
<gpu_versions>
<gpu_usage>0.49</gpu_usage>
<cpu_usage>.04</cpu_usage>
</gpu_versions>
</app>
<app>
<name>astropulse_v6</name>
<gpu_versions>
<gpu_usage>0.51</gpu_usage>
<cpu_usage>1</cpu_usage>
</gpu_versions>
</app>
</app_config>

Hope this helps.

Zalster

I think that would be app_config.xml instead of cc_config.xml. I think one of the main purposes for the implementation of app_config was to allow those running stock apps to run multiple tasks on their GPU like with the anonymous platform apps.
11) Message boards : Number crunching : Overheating on laptops (Message 1503624)
Posted 3 days ago by Profile HAL9000
I found just raising the notebook a small amount off of solid surface was fairly helpful in cooling. I used Lego to make stands to place under the feet. Raising the notebook about 10-15mm. As the fan exhaust exits to the left, & slightly down, I place the notebook near the edge of a table. So it blows into the open air instead of heating the table surface.

This seemed more cost effective than buying one of those perforated stands.

I also have the battery out most of the time when it is plugged in. Prevents it slow deteriorating from micro charge cycles & less heat. When I don't plan on traveling I remove the battery with about 40% charge. As this was in a recommendation for lithium battery longevity I read a few years ago.
12) Message boards : Number crunching : Issues with Lunatics site ? (Message 1503614)
Posted 3 days ago by Profile HAL9000
I haven't had any issues the whole time. In my router I use my ISP as my primary DNS and then 8.8.8.8 (Goggle) as my secondary. Single adding goggle as the secondary I don't think I have been having any DNS issues.
13) Message boards : Number crunching : 2015 Christmas list for the servers (Message 1502646)
Posted 5 days ago by Profile HAL9000
Here's an idea...someone ask Eric to post an *official* list of the most urgently needed items?

I thought they were doing that with the GPU Users group & their donation page.
14) Message boards : Number crunching : AMD's Radeon R9 295 X2 Dual GPU cards reviewed (Message 1502447)
Posted 5 days ago by Profile HAL9000
Yes i know but they talk about:

The Radeon R9 295X2 draws a total of 420 W from the auxiliary power connectors, and only a few watts more from the motherboard's PCI Express slot.


What i´m curious to know how they manage to do that, since it uses 2x8pin connectors who has the nominal capacity of 150W each...

On other point most of their measures are made for gaming, now crunching you know it´s another world.

Just because there is a spec doesn't mean they have to adhere to it. Sometimes these changes become the new spec.
Some power supply manufactures will built their equipment with more overhead that is required. To the order of 50%, or better, & are able to deliver 225w+ per 8-pin connector.
15) Message boards : Number crunching : Running Stock Experiment (Message 1502316)
Posted 6 days ago by Profile HAL9000
I normally consider 4-6 months a good amount of time to find how a change will effect a systems RAC. That way I can compare it to tends that might be ongoing. Such as shorty storms or lots of VLAR tasks.
16) Message boards : Number crunching : 2015 Christmas list for the servers (Message 1501591)
Posted 7 days ago by Profile HAL9000
Given that 32GB DDR3 dimms are around $1000 I don't even want to think about how much one of those would cost. Let alone 4 of them for a quad channel kit.
17) Message boards : Number crunching : HTPC, which hardware? (Message 1501362)
Posted 8 days ago by Profile HAL9000
I starting doing this in about 2000 after the All-In-Wonder Radeon came out. It took a few more years for an HD version to come out, but I was only using a 3GHz Pentium 4 at that time. So a large amount of processing resources are not needed to accomplish the task.

Your monitor will not require HDCP unless you plan to connect your satellite directly to it. Normally you would connect satellite > recording card & then video card > monitor.

HTPC to playback or watch input of your satellite doesn't need to be very high end. A bit more is needed when handling recording, but not much. Do you plan to transcode your videos or just burn recorded video files to disc? Many DVD/Blu-ray players can play several video file formats so you may not need to transcode video to DVD/Blu-ray format.
Transcoding is the most processor intensive task. You just need faster hardware if you want it to take less time, or if transcoding and watching video at the same time.. My old Pentium 4 would take several hours, sometimes overnight, to transcode recorded video for disc. I imagine modern hardware could do DVD/Blu-ray transcoding in real time or faster.

Have you started looking at "TV tuner cards" yet? I was a fan of the ATI ones, but they are no longer made. There are a number of add-in cards and USB based tuners for recording now. One of the other brands I had considered in the past was hauppauge.
18) Message boards : Number crunching : WinXP EOS -> Motherboard is Win8.1 compatible? (Message 1501106)
Posted 9 days ago by Profile HAL9000
microsoft.com/upgrade-to-windows-8
I have let run the WinVista/XP tool.

In latest (v1.3) BIOS of my ASRock G41M-GS motherboard & Intel Core2 Duo E7600 CPU:
No- Execute Memory Protection [enabled/disabled] (If disabled force the XD feature flag to always return 0.)


No- Execute Memory Protection [disabled]
- the tool say: no NX support (negative result/info).

No- Execute Memory Protection [enabled]
- the tool say: NX support (no negative result/info).

The tool say, "Secure Boot" not possible. (UEFI BIOS needed - just with newer motherboards)
Is this a feature which I should use nowadays?
New motherboard, CPU, RAM needed then ..

Thanks.

I do not use UEFI "Secure Boot" on any of my systems. I don't currently see a need for it. Maybe it will be a requirement for Windows 9 or whatever the next full version of Windows might be.
19) Message boards : Number crunching : WinXP EOS -> Motherboard is Win8.1 compatible? (Message 1501030)
Posted 9 days ago by Profile HAL9000
Edit: Sorry, I meant E7400


FYI: the Core 2 Duo E7400 also has NX/XD: http://www.cpu-world.com/CPUs/Core_2/Intel-Core%202%20Duo%20E7400%20AT80571PH0723M%20-%20AT80571PH0723ML%20(BX80571E7400).html

Intel implemented NX bit support in the later generation Pentium 4. So any Intel Core processor will have support. However not all motherboards had this feature as standard. I have some older Core 2 systems that do have have the function to enable it in the BIOS. Even with their latest BIOS being released in 2009.

These processor features are also required for Windows 8.1.
CX16 * Supports CMPXCHG16B instruction LAHF-SAHF * Supports LAHF/SAHF instructions in 64-bit mode PREFETCHW * Supports PREFETCHW instruction

They can be checked with Microsoft Coreinfo tool. Using coreinfo -f from the command line.
20) Message boards : Number crunching : I'm falling, I bought a parachute. From 100% AP, to 100% MB. (Message 1500561)
Posted 10 days ago by Profile HAL9000
I think for the sake of the sanity of the participants on the board (that all knows what we're talking about) it would be better if you have your own thread for the stock test :-) Go for it James, that test should be interesting indeed.

Ok then, I will start my own thread. That way folks wont get confused of who is doing what.

I am going to torture myself and do MB and AP on the CPU, Plus run MB on my GTS-250. I want to see if there is any RAC advantage to run without op apps. But I might try running just MB straight up after I see what happens.

The hard part will be getting an average RAC for this machine. The stats graph looks like mountains and valleys. You can definatley see when we run out of AP work. I just might take the high and low and do the average.

So a few more days untill I clear my cache, And then I will open my own thread.

Sten, Thanks for doing this test. You have inspired me to do my own.
I still say you will level out at 8,000.

I pull the numbers from statistics_setiathome.berkeley.edu.xml using a .bat and average them to get my average RAC. So it spits out "Host: 5837483 Average: 8030 for 58 days"


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