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Alternate cryptocurrencies / Mining (Altcoins) / xmr-stak-power: Port of xmr-stak-cpu to POWER8 little endian machines
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on: October 31, 2017, 03:55:21 AM
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Hi everyone, it's been a long time since I contributed something since joining this forum in 2011. I ported the xmr-stak-cpu miner to POWER8 little endian cpus, currently it's not very optimized and has been tested on CentOS 7 only. You can get about 1600 H/s on a 20 core 2.8 GHz server. To compile you will need to download and install the IBM Advanced Toolchain 10.0 on your OS, since only its custom GCC compiles the code currently. After installing, just set your CC and CXX env variables to the path of the IBM compilers and use cmake as usual. The world isn't just for compromised x86 machines! Github link: https://github.com/nioroso-x3/xmr-stak-power |
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9
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Economy / Games and rounds / Re: 10 BTC 4 U 2 STEAL - Protected by a weak 5-letter password - crack & it's yours!
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on: December 02, 2012, 05:22:51 PM
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if (txtPassphrase.Text != "") {
SetText(txtPrivWIF, new Bip38KeyPair(kp, txtPassphrase.Text).EncryptedPrivateKey); //<-loop this?
} else {
SetText(txtPrivWIF, kp.PrivateKeyBase58);
}
SetText(txtPrivHex, kp.PrivateKeyHex);
SetText(txtPubHex, kp.PublicKeyHex);
SetText(txtPubHash, kp.Hash160Hex);
SetText(txtBtcAddr, new Address(kp, AddressTypeByte).AddressBase58); I don't understand very much, but we have to search for all combinations looping this piece of code? How can we arrive at the public key if random keys get encrypted with the password?
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11
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Other / CPU/GPU Bitcoin mining hardware / Re: Dead 7970 DD Fan Alternative
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on: November 15, 2012, 02:56:57 AM
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I also had a burnt fan with this card, and XFX sent me an entire new cooler, with both fans.
Seems like this card is using very bad quality fans, FirstDo or something, they don't even have a webpage.
How did you contact XFX? I have two of these cards and the fans need constant attention. Through their support page. You need to register the card with them. I was offered to return them the entire card or have them send the replacement cooler. |
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13
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Economy / Service Announcements / Re: [ANN] BitcoinStore.com (Beta) - Electronics super store with over 500K items!
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on: November 05, 2012, 04:32:11 PM
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When you are ready with a fully-functional, attractive site. I have a marketing scheme idea for you.
1) Partner with TangibleCryptography, Bitinstant or another one of these cash deposit direct to bitcoin outlets.
2) Ask them to issue a coupon code for your store (say $100 off $1000). Coupons go to people who purchase $1000 worth of btc from them and who are first-time customers (I assume they do KYC to check this).
3) Eliminate coupon code sharing by requiring that the bitcoins used to make the purchase match the bitcoins purchased from the cash to bitcoin outlet
4) Identify a few popular items that you can offer competitive prices for.
5) Post the item and detailed bitcoin purchase, download, and coupon acquisition instructions on "slickdeals.net" Also post a price comparison vs. Amazon, newegg, etc.
Expect to lose some money off this. The goal is to get name recognition for the bitcoinstore + bitcoin acquisition methods in a very widely used deal forum.
Ideally you can get the absolute cheapskates who populate slickdeals.net to regularly scan your site for new offers and post about them autonomously.
Presumably the name recognition will help your partner as well.
[I don't think you should do this until the site has been substantially upgraded. It looks a bit like a low-price scam site right now. (I mean that in the nicest possible way.)
Scam sites often involve purchasing hardware from foreign companies. These companies also ask for wire transfer, etc. less reversible methods of payment than credit cards.
Thus you have to improve your image]
It doesn't look that bad, the sites that came before this looked far worse. |
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14
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Bitcoin / Mining software (miners) / Re: CGMINER GPU FPGA overclock monitor fanspeed RPC linux/windows/osx/mip/r-pi 2.6.5
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on: August 16, 2012, 06:56:20 PM
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I doesnt actually crash and exit, the interface just stops responding. Also it stops submitting shares, I use the 50btc.com pool and when the miner hangs the drop in mhash/s is seen quickly in the pools API. And GPU-Z shows the gpus continue running the kernels.
What is the CGMINER GPU status and CGMINER pool status? Are your other network applications continue operating when you switch user? Use cgminer API to read GPU and POOL status. This happens after switching user: 08/16/12 14:49:06 0x12e4 INF refreshADLInfo(): min GPU utilization: 0%, max GPU temperature: 75C
08/16/12 14:49:06 0x12e4 DBG adlPollingThread(): ADL H/W reading done, status: ADL_STATUS_CLOSED
08/16/12 14:49:10 0x0e28 INF listenForCommands(): new connection from: 127.0.0.1
08/16/12 14:49:11 0x0e28 SVR listenForCommands(): received invalid request
08/16/12 14:49:11 0x0e28 INF listenForCommands(): closing accepted connection.
08/16/12 14:49:11 0x0e28 INF listenForCommands(): new connection from: 127.0.0.1
08/16/12 14:49:12 0x0e28 DBG listenForCommands(): received 'status' command
08/16/12 14:49:12 0x0e28 DBG getWatchdogStatus(): status len: 927
08/16/12 14:49:12 0x0e28 INF listenForCommands(): closing accepted connection.
08/16/12 14:49:17 0x0e28 INF listenForCommands(): new connection from: 127.0.0.1
08/16/12 14:49:18 0x0e28 SVR listenForCommands(): received invalid request
08/16/12 14:49:18 0x0e28 INF listenForCommands(): closing accepted connection.
08/16/12 14:49:18 0x0e28 INF listenForCommands(): new connection from: 127.0.0.1
08/16/12 14:49:18 0x0e28 DBG listenForCommands(): received 'status' command
08/16/12 14:49:18 0x0e28 DBG getWatchdogStatus(): status len: 927
08/16/12 14:49:18 0x0e28 INF listenForCommands(): closing accepted connection.
08/16/12 14:49:21 0x12dc DBG monitorThread(): max gpu temperature (75C) stays below defined threshold (86C)
08/16/12 14:49:21 0x12dc DBG monitorThread(): all GPU fans appear to be functional
08/16/12 14:49:21 0x12dc SVR monitorThread(): GPU mining activity: 0% is lower than threshold: 20%, timeout of 80 seconds has been reached, will restart miner process after: 15 seconds...
08/16/12 14:49:21 0x12dc SVR restartMiner(): killing miner process: 1164 |
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15
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Bitcoin / Mining software (miners) / Re: CGMINER GPU FPGA overclock monitor fanspeed RPC linux/windows/osx/mip/r-pi 2.6.5
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on: August 16, 2012, 03:28:22 PM
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CGMINER crashes when using Switch User on Windows. This is the only miner that does this, all other miners continue happily mining in the background.
When the crash happens, the mining kernel continues to run on the gpus but no shares are submitted, and the cgminer interface just hangs and doesnt respond.
I tried all versions back to 2.0.4, they all crash when switching user.
My machine:
Windows 7 x64
Catalyst 12.6, APP 2.7
Radeon 7950 and 5850
Does the cgminer actually crash or continues running in ALIVE state and not submitting shares? If cgminer actually crashes, post WER details. If cgminer process is still running, check GPU/PGA and pool statuses using ANUBIS or other API status display tools. I doesnt actually crash and exit, the interface just stops responding. Also it stops submitting shares, I use the 50btc.com pool and when the miner hangs the drop in mhash/s is seen quickly in the pools API. And GPU-Z shows the gpus continue running the kernels. |
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16
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Bitcoin / Mining software (miners) / Re: CGMINER GPU FPGA overclock monitor fanspeed RPC linux/windows/osx/mip/r-pi 2.6.5
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on: August 16, 2012, 05:01:16 AM
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CGMINER crashes when using Switch User on Windows. This is the only miner that does this, all other miners continue happily mining in the background.
When the crash happens, the mining kernel continues to run on the gpus but no shares are submitted, and the cgminer interface just hangs and doesnt respond.
I tried all versions back to 2.0.4, they all crash when switching user.
My machine:
Windows 7 x64
Catalyst 12.6, APP 2.7
Radeon 7950 and 5850
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