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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 19, 2013, 02:41:27 AM
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What is the best way to get an hp build working on OS X?
Having toyed with it for hours, I can conclusively say that installing VMWare Fusion with an image of Ubuntu and compiling / running it on there yields the best results. I don't know why, it just does. Natively, compiled in Mountain Lion, I get about half the performance from the same build compiled in the VM. I hope helps you out. |
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183
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 17, 2013, 03:52:58 PM
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You must have failed to compile, I guess you are running the low ram droplet. Try again, I updated the guide to include swapping: which vps are you using? i scrapped that now since it wasnt working. I am trying on my dedicated server however apt-get does not work and when i try yum install build-essential libssl-dev libboost-all-dev libdb5.3++-dev -y i get Loaded plugins: dellsysid, fastestmirror, security Loading mirror speeds from cached hostfile * base: mirror.sov.uk.goscomb.net * extras: mirrors.coreix.net * updates: mirror.as29550.net base | 3.7 kB 00:00 extras | 3.4 kB 00:00 updates | 3.4 kB 00:00 updates/primary_db | 3.7 MB 00:00 Setting up Install Process No package build-essential available. No package libssl-dev available. No package libboost-all-dev available. No package libdb5.3++-dev available. Error: Nothing to do so i'm guessing that yum install either wasnt correct or else libdb5.3++ etc does not work with centos 6.3 64bit? Bro, if you want it work, just install it exactly as I did. I have had that exact same code running on three different VPS providers, including the big buy Amazon EC2 i tried your exact way but with centos 6.3 apt-get does not work it seems  Just use yum. "Yum search" should get you what you need. |
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184
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Bitcoin / Hardware / Re: [ANN] - Stumptown Miners - Avalon PCB Assembly - West Coast USA
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on: July 16, 2013, 05:47:45 AM
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You need to order power supplies and fans. The recommended fan is the SilenX EFX-10-12 Effizio: http://amzn.to/1bCQDfj(Affiliate link: trying to cut down costs however possible.) If you're getting a lot of K16s, you could probably just put them all in front of a big box fan and be alright. I'm toying with the idea of making a platform and setting them out in front of my air conditioner's fan. From what I've read on the Klondike thread, the chips are pretty easy to cool if you have a decent-sized heatsink on the board. There isn't a single recommended PSU, but you'll want a gold or platinum certified PSU from a respected brand like Corsair. The K16s are powered by a 6-pin PCIe connector, so you'll need to have enough of those to power your Klondikes. You can also get splitters and adapters to increase the number of PCIe connectors your PSU can handle. I'm thinking about getting this one myself: http://www.newegg.com/Product/Product.aspx?Item=N82E16817153145I also have a bunch of Corsair Gold PSUs left over from my GPU mining operation that I might use. How many of those fans per k16? Each k16 is ~75W and powered by one 6-pin pci-e connector, right? Finally, we'll need a usb cable. What's the board end of the usb cable? How are they chained? |
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185
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 16, 2013, 02:57:52 AM
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so if I just replace the primecoin-qt.exe and the daemon on this windows machine, what will happen with the coins that are already on this machine? Or is it best to send these coins to another account before installing this release on this machine?
We need good Wiki or a FAQ. Same questions been asked over and over again, and you can't point people anywhere. Your coins are tied to your private key(s), which is in wallet.dat file. That file is located in totally separate directory from your Primecoin client, and any re-installation has no effect on it. on a windows machine, where is this wallet.dat file stored? Im not finding it. Should be appdata/primecoin WindowsKey+R (or Start, Run) %appdata%\Primecoin |
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191
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 15, 2013, 12:26:35 AM
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I found that installing libmpfr-dev which it required for Freicoin, also satisfies the gmp requirement.
Is there a difference in speed between the mpfr and gmp libraries?
libmpfr-dev pulls libgmp as a dependency. The actual mpfr does floating point calculations. Comparing mpfr and gmp is like comparing apples and bananas. Thank you. I did not know that it used gmp as a dependency. I see so many libraries and packages that appear to do the same things. Some better at certain applications while worse at others. I guess the next major step would be to rewrite the mining routine in OpenCL. Though I would not doubt somebody has already did it and is not sharing. 
Can't say I would blame them at this point.Yeah, I was thinking that earlier. It seems a likely explanation to the skyrocketing difficulty (that surprises even Sunny). I'm curious - how / why were OCL miners even publicly released anyway? What caused the person / group to release it/them and not horde anymore? |
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192
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 14, 2013, 11:47:58 PM
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I found that installing libmpfr-dev which it required for Freicoin, also satisfies the gmp requirement.
Is there a difference in speed between the mpfr and gmp libraries?
libmpfr-dev pulls libgmp as a dependency. The actual mpfr does floating point calculations. Comparing mpfr and gmp is like comparing apples and bananas. Well I tried "sudo port uninstall gmp" and then "sudo port install mpfr". Then I recompiled. It compiled without errors but the performance was even worse than not having mpfr installed (with macports). I'm at a loss now... |
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193
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 14, 2013, 11:24:12 PM
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I'm getting pretty abysmal performance with this build on osx (using the osx makefile). 1player's build seems to be working better on osx while all other machines are better using mikhael's hp3. Any suggestions / optimizations to the osx makefile would be much appreciated.
I'm tempted to VM an ubuntu build and see how that goes but I'd rather run it natively in osx with this high performance build.
Where did you get your libgmp? That's what's doing most of the heavy lifting. I would probably look for optimization opportunities in how libgmp is compiled. sudo port install gmp |
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194
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 14, 2013, 10:38:56 PM
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I'm getting pretty abysmal performance with this build on osx (using the osx makefile). 1player's build seems to be working better on osx while all other machines are better using mikhael's hp3. Any suggestions / optimizations to the osx makefile would be much appreciated.
I'm tempted to VM an ubuntu build and see how that goes but I'd rather run it natively in osx with this high performance build.
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195
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 14, 2013, 10:24:50 PM
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And no one will bother mining this coin and shift to other more profitable ones.. sadly but true, due to other people's greed, they are killing this coin.
I'm not so sure about that. Sure, some will, but the fact that something else underlying is happening aside from just generating coins, there may be a fair number of people who stay in it for that reason. I mean think about the people who were / are running seti / folding @ home. This is sort of like that except it's tied to a cryptocurrency. There will be fluctuations in price, sure, but I don't think it's completely analogous to the other altcoins. |
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Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance
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on: July 14, 2013, 04:44:59 PM
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A lot of pages have shown up in this thread since I went to sleep last night. Any updates on an osx build? I couldn't get it to compile with the makefile.
You want headless or with QT? i built the official source tree with the QT GUI for OSX. http://waspdigital.com/AltCoinQt-OSX/Primecoin-Qt-v0.1.1.dmgI'll try building this one right now, just headless first, maybe with QT later. EDIT: Just build headless of this version in OSX with no compile errors at all. You are probably missing some dependancies. What is the error you get? I don't remember the error. I'm about to run out to lunch now but I will try again when I return. When you said "official source tree" for the QT GUI for osx, do you mean hp2 or Sunny's official (I'm assuming the latter). I might be missing a dependency. I'll take a look. I'm also using the following for CLFAGS: CFLAGS = -mmacosx-version-min=10.7 -O3 -mfpmath=sse -march=native -mx32Edit: it just occurred to me that the mx32 might be the issue. I will try with just native and o3 later. |
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