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Bitcoin / Mining software (miners) / Re: BTCMiner - Open Source Bitcoin Miner for ZTEX FPGA Boards, 215 MH/s on LX150

on: August 07, 2013, 08:23:58 AM

Quote from: Lyddite on July 30, 2013, 09:22:46 AM I have one board which is being disabled showing the following error: Code: Read hash data: error sending control message: No such device: Disabling device Sometimes after 10, 20 minutes, 1 hour, 3 hours.... anyway, enough to affect mining. Firmware on the boards has been upgraded to the latest available version. I believe I have ruled out a faulty USB hub and USB cables by swapping cables and plugging the board in directly to USB without an external hub. Power supplies have been swapped with the same result. Eventually, I'll get around to making a cable for a large regulated power supply I have to completely rule out the power supply. In the end, the problem was with the power supplies... both little cheap wall warts. After switching to a 12V 5A regulated power supply, no problems. Maybe not as efficient in term of power, but the boards have mined reliably for days without having to restart anything.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

on: August 07, 2013, 07:50:24 AM

Quote from: SlyWax on August 07, 2013, 12:56:32 AM What is that small fall after 78000 ? Is it real or you have error in your data ? No error, its all in the blockchain. After bottoming out August 2nd-3rd it has climbed steadily until now. I've had my hands a bit full but will post a link to a new chart in a few hours.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance

on: August 07, 2013, 07:43:50 AM

Quote from: Tamis on August 06, 2013, 05:43:00 PM Getting a LOT of orphans today :/ I noticed that if you start a machine where the blockchain is not up to date and where the wallet is more current, transactions show up as orphans until the blockchain is synced.

Other / Beginners & Help / Re: New Member

on: August 06, 2013, 10:26:20 PM

Quote from: Fellow on August 06, 2013, 10:24:35 PM Doing my mandatory first post. Just getting started with bitcoins and trying to get a hang of them. Its nice to be apart of a forum based around them. May I suggest looking into primecoins.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

on: August 06, 2013, 09:39:25 PM

Quote from: Trillium on August 06, 2013, 03:17:23 PM Now in HD! Up to block 88877, 2013-07-29 22:48:52 UTC, anyway. :-)

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

on: August 06, 2013, 11:35:10 AM

Code:

                              Primecoin Difficulty

   10 ++++-+-++-+-++-++-+-++-+-++-+-++-+-++-++-+-++-+-++-+-++-+-++-++-+-++++
      +           +          +           +          +           +          +
  9.5 ++...........................................................***....++
      |           :          :           :  ************************       |
    9 ++.........................************.............................++
      |           :          :  **       :          :           :          |
  8.5 ++........................*.........................................++
      |           :          : **        :          :           :          |
    8 ++..................******..........................................++
  7.5 ++................***...............................................++
      |           :    **    :           :          :           :          |
    7 ++............****..................................................++
      |           :*         :           :          :           :          |
  6.5 ++...........*......................................................++
      |           *          :           :          :           :          |
    6 ++.........*........................................................++
      +           +          +           +          +           +          +
  5.5 ++++-+-++-+-++-++-+-++-+-++-+-++-+-++-++-+-++-+-++-+-++-+-++-++-+-++++
    29/06       06/07      13/07       20/07      27/07       03/08      10/08

A new chart coming a bit later.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance

on: August 04, 2013, 11:13:07 PM

CUDA is mentioned in the ypool miner's Git repo. I haven't looked at it it in much detail but a few days a go there was a link to a paper about porting GNUMP to CUDA.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

on: August 04, 2013, 11:02:16 PM

Quote from: Tamis on August 04, 2013, 10:31:02 PM Quote from: Lyddite on August 04, 2013, 09:24:52 PM It looks like I am not able to upload images to this board yet, pity. Oh well, I would like to have shared it here I figured the simplest thing to do would be to blog it. There you'll find a plot of the last nearly two weeks of difficulty... http://lyddit.blogspot.fi/2013/08/primecoin-difficulty-enters-new.html Very nice work Lyddite ! Bookmarked. It clearly shows the sudden rise I was talking about. I wonder what caused it, difficulty was lower nicely a few days ago then booom... Thank you Tamis. More charts in the next few days.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance

on: August 04, 2013, 10:01:39 PM

Quote from: Tamis on August 04, 2013, 08:06:42 PM Difficulty increase the past few days : I have a graph of the past few days, difficulty. There is a link in this post. Unfornately I am not yet able to post attachments here yet. https://bitcointalk.org/index.php?topic=251850.msg2866774#msg2866774 Quote from: Tamis on August 04, 2013, 08:06:42 PM Edit : 5 servers down - Still made 20 blocks today and got an hour left. Keeping 30 servers for the night, I'll see if I terminate more in the morning. You seem to have dedicated quite a bit of infra to this. :-) Today, I decided to shut down a larger machine and wait and see if the difficulty drops. (No I don't think what I run has a impact on the difficulty.)

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

on: August 04, 2013, 09:24:52 PM

It looks like I am not able to upload images to this board yet, pity. Oh well, I would like to have shared it here I figured the simplest thing to do would be to blog it. There you'll find a plot of the last nearly two weeks of difficulty... http://lyddit.blogspot.fi/2013/08/primecoin-difficulty-enters-new.html

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

on: August 04, 2013, 07:56:55 PM

Quote from: SRoulette on August 04, 2013, 02:48:38 AM To get this thread back to a warm fuzzy feeling, I will throw out a few small xpm donations, who wants some ? Sure, sounds nice. ANTYC4pAimVW726hufAFBgJb4VDeSQbYVT

Alternate cryptocurrencies / Altcoin Discussion / Re: [Primecoin XPM] [Giveaway] Share Something about Primecoin ~ Get A XPM Tip!!!

on: August 03, 2013, 12:19:11 AM

Hmmmm, great thread so far. Can't immediately think of was has not been said yet. Well primecoin is the first crypto-currency I have had the fortune to solo mine. I guess one of the most important things to consider with mining is being sure to run the software that performs the best. Follow the forums proactively, not all but many other miners are. Keep your software up to date, benchmark and tweak setting until you are comfortable. Backup your wallet, set your wallet passphrase, keep your miners and wallets safe with strong passwords. By the way, I made my first trade today, in person, some of my XPM for BTC.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance

on: August 02, 2013, 09:45:58 AM

Quote from: Tamis on August 02, 2013, 09:20:53 AM Does hp8 compile with only 256mb of ram ? I noticed that at a certain point, probably when compiling main.cpp, compilation would fail due to lack of memory. The compiler was using about 600 Megs at the time believe. The error from gcc didn't say anything about memory but dmesg showed a problem. Code: Out of memory: Kill process 10876 (cc1plus) score 949 or sacrifice child Killed process 10876 (cc1plus) total-vm:615808kB, anon-rss:578368kB, file-rss:776kB If you set up some swap space, perhaps a half a gig, hp8 should compile without problem. I believe the extra memory is only needed for compiling main.cpp.

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin High Performance

on: August 01, 2013, 05:26:27 PM

Is there some regression in the latest version? I realize that the rate of finding primes is not the only thing to consider. Here is some data from a machine running a clone of CVS from a few hours ago today ( "version" : "v0.1.1xpm-93-g0751bbd-beta-hp8" ) 2013-08-01 17:01:15 primemeter 7875206 prime/h 162190130 test/h 120 5-chains/h 0.178356 chain/d 2013-08-01 17:02:15 primemeter 7855064 prime/h 162149863 test/h 240 5-chains/h 0.179119 chain/d 2013-08-01 17:03:15 primemeter 7809919 prime/h 161926985 test/h 300 5-chains/h 0.177141 chain/d 2013-08-01 17:04:15 primemeter 7877955 prime/h 162077455 test/h 300 5-chains/h 0.177752 chain/d And data from hp8 ("version" : "v0.1.1.0-unk-beta-hp8") 2013-08-01 17:06:52 primemeter 11272017 prime/h 96159859 test/h 240 5-chains/h 2013-08-01 17:07:52 primemeter 11382319 prime/h 97891766 test/h 240 5-chains/h 2013-08-01 17:08:52 primemeter 11387602 prime/h 97631808 test/h 600 5-chains/h 2013-08-01 17:09:52 primemeter 11423666 prime/h 97832785 test/h 420 5-chains/h More tests are being run per hour which I suppose is a good thing. The sievesize remained the same. --Lyddite

Bitcoin / Meetups / Re: Satoshi Square Helsinki / 2nd of August 4 PM (16:00)

on: August 01, 2013, 06:51:14 AM

Yay!

Bitcoin / Meetups / Re: [ANN] Helsinki Bitcoin Meetup, Friday 3rd of August

on: July 30, 2013, 10:14:49 AM

Anything official or not going on this year 2013 at Assembly with respect to Bitcoins? I remember reading something about a competition earlier in the year but now there is nothing.

Bitcoin / Mining software (miners) / Re: BTCMiner - Open Source Bitcoin Miner for ZTEX FPGA Boards, 215 MH/s on LX150

on: July 30, 2013, 09:22:46 AM

I have one board which is being disabled showing the following error: Code: Read hash data: error sending control message: No such device: Disabling device Sometimes after 10, 20 minutes, 1 hour, 3 hours.... anyway, enough to affect mining. Firmware on the boards has been upgraded to the latest available version. I believe I have ruled out a faulty USB hub and USB cables by swapping cables and plugging the board in directly to USB without an external hub. Power supplies have been swapped with the same result. Eventually, I'll get around to making a cable for a large regulated power supply I have to completely rule out the power supply. Until then I made a little Expect script to detect and reset the disabled miner. Expect is a program that can "talk" to other interactive programs via a script. My script is by no mean perfect but gets the job done and it resets the miner and has been running unattended for the past day so I figured I would share it. I have tested this on Debian linux, you need to install "expect" in order to run it. Code: apt-get install expect should be enough on Debian or Ubuntu. Then start monitoring the following command: Code: expect ztex_restart_disconnected.exp More details about the scripts below. - Lyddite --- BTC: 14J26yT4e8xBbcP3XZEk4osLozf6eosmM1 LTC: LiCmLnRr8hCXhiATmBd6ekw4L3Q36AsijH XPM: ANTYC4pAimVW726hufAFBgJb4VDeSQbYVT Two scripts are needed first a simple script containing the you use to start BTCMiner. The scripts should in the same directory as BTCMiner.....jar The first script, start_ztex is what you use to start your cluster. eg... with mine I connect to a local stratum pool. You will need you change at least the host, port , username , password and perhaps firmware. start_ztex.sh Code: #!/bin/bash # java -cp ZtexBTCMiner-121126.jar BTCMiner -v -host http://192.168.1.XX:XXXX -u XXXX -p x -f ztex_ufm1_15d.ihx -v -m c The second script, is the expect script which monitors the output ztex_restart_disconnected.exp Code: #!/usr/bin/expect -f # set timeout -1 spawn $env(SHELL) match_max 100000 expect "*\$ " send -- "./start_ztex.sh" expect "./start_ztex.sh" send -- "\r" expect "(Re)Scanning bus ... \r" # wait for error, then send r return # first check resets right after the error # second line for other more rarely errors that may disable the device (resets on the next device status line) while 1 { expect { "Read hash data: error sending control message: No such device: Disabling device\r" { sleep 10 ; send -- "r\r" ; exp_continue } "Device disabled since\r" { send -- "r\r" ; exp_continue } } }

Other / Beginners & Help / Re: new hello

on: July 25, 2013, 10:56:56 AM

Hi! I'm new too. I've been lurking for a few months and mining for a couple. Probably should have signed up mich earlier. I have fiddled with mining with CPU, GPU, mining and FPGAs. As Far as SHA-256 based coins go. I would be hard pressed to break more than 800 Mhash/s. Right now, currently mining with CPUs for Primecoins, GPUs for Litecoins and FPGAs for Bitcoins.

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