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Author Topic: Vanitygen: Vanity bitcoin address generator/miner [v0.22]  (Read 1146063 times)
LoyceV
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September 24, 2016, 11:07:49 AM
Last edit: September 24, 2016, 04:15:07 PM by LoyceV
 #2981

Code:
$ ./vanitygen 1test
Difficulty: (null)
Segmentation fault
Reinstalling the package fixed the segfault:
# apt-get remove libssl-dev libpcre3-dev
# apt-get remove git make gcc opencl-headers libssl-dev libpcre3-dev ocl-icd-dev ocl-icd-dbg
# apt-get install libssl-dev libpcre3-dev
# apt-get install git make gcc opencl-headers libssl-dev libpcre3-dev ocl-icd-dev ocl-icd-dbg

vanitygen works again.
But something changed for oclvanitygen. It used to "just work" with my Nvidia, without specifying it. Now it gives these options:
Code:
Available OpenCL platforms:
0: [NVIDIA Corporation] NVIDIA CUDA
  0: [NVIDIA Corporation] GeForce 840M

And when I select -D 0:0 it can't open it:
Code:
./oclvanitygen -D 0:0 1test
Difficulty: 264104224
clBuildProgram: CL_BUILD_PROGRAM_FAILURE
Build log:

Device: GeForce 840M
Vendor: NVIDIA Corporation (10de)
Driver: 352.63
Profile: FULL_PROFILE
Version: OpenCL 1.2 CUDA
Max compute units: 140733193388035
Max workgroup size: 1024
Global memory: 2147352576
Max allocation: 536838144
Could not open device '0:0', ignoring
Available OpenCL platforms:
0: [NVIDIA Corporation] NVIDIA CUDA
  0: [NVIDIA Corporation] GeForce 840M

I tried everything I tried in March again. I'm not sure what did the trick, but it works again Smiley
It "suddenly" worked again after I put my laptop back to using the Nvidia driver for its own graphics.

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September 24, 2016, 03:46:57 PM
 #2982

Addresses that start with 3 are not "normal" addresses. These are p2sh addresses, they are based off of a script. They don't have an associated public key, they are based off of a script which is hashed and becomes the address. You can't really generate vanity p2sh addresses.

There's a fork of vanitygen that will generate vanity p2sh addresses using a script in the format of [OP_1 PUBKEY OP_1 OP_CHECKMULTISIG], and there are more efficient methods possible.



What fork do you have in mind ?
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September 27, 2016, 01:01:20 AM
 #2983

Hello, sorry for the noobish question, but I'm tryint to use Vanity Gen but I can't seem to get options to work.

I am just trying to limit the number of threads, otherwise the tool works nicely.
My CMD line looks like this:

vanitygen64.exe 1PURCAZ -t 3

I also tried with /t instead than -t but I keep getting an error like PREFIX 3 NOT POSSIBLE or INVALID CHARACTER '/' IN PREFIX '/T'

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September 27, 2016, 03:09:28 AM
 #2984

Will have to check later what -t does, but put the address at end...

Code:
vanitygen64.exe -t 3 1PURCAZ

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September 27, 2016, 04:20:07 AM
 #2985

Will have to check later what -t does, but put the address at end...

Code:
vanitygen64.exe -t 3 1PURCAZ

Mhhh I tried that too... I'll try again.

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September 27, 2016, 07:29:06 AM
 #2986

Will have to check later what -t does, but put the address at end...

Code:
vanitygen64.exe -t 3 1PURCAZ

Mhhh I tried that too... I'll try again.
This works fine here:
./vanitygen -t 1 1test

Isn't lowering the priority a better idea than limiting the number of threads? On Linux I just put "nice" in front of the command (although it doesn't help much with oclvanitygen).

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September 27, 2016, 05:39:20 PM
 #2987

Will have to check later what -t does, but put the address at end...

Code:
vanitygen64.exe -t 3 1PURCAZ

Mhhh I tried that too... I'll try again.
This works fine here:
./vanitygen -t 1 1test

Isn't lowering the priority a better idea than limiting the number of threads? On Linux I just put "nice" in front of the command (although it doesn't help much with oclvanitygen).

It works, but although the computer is responsive, the Resource Monitor shows that all the 4 CPU are working. Well, I guess I won't be playing videogames for the next 8 days or so  Grin

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September 27, 2016, 06:26:55 PM
 #2988

It works, but although the computer is responsive, the Resource Monitor shows that all the 4 CPU are working. Well, I guess I won't be playing videogames for the next 8 days or so  Grin
That's why I tested with 1 thread. It's easier to see that way, as other applications eat CPU too.
Just in case: you can always turn it off when you want to use your PC, and turn it back on when you don't need the speed somewhere else. It just continues checking random addresses, so no work gets lost.

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September 27, 2016, 08:17:11 PM
 #2989

It works, but although the computer is responsive, the Resource Monitor shows that all the 4 CPU are working. Well, I guess I won't be playing videogames for the next 8 days or so  Grin
That's why I tested with 1 thread. It's easier to see that way, as other applications eat CPU too.
Just in case: you can always turn it off when you want to use your PC, and turn it back on when you don't need the speed somewhere else. It just continues checking random addresses, so no work gets lost.

This is something that I can't completely catch: it says that in 8 days the chances to find it are 50%, and I suppose the number increases while time passes.
So how is it possible that there's no "lost work" if I cut the search now and resume later, when the resuming is actually not resuming anything, but starting from scratch?

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September 27, 2016, 08:28:32 PM
 #2990

This is something that I can't completely catch: it says that in 8 days the chances to find it are 50%, and I suppose the number increases while time passes.
So how is it possible that there's no "lost work" if I cut the search now and resume later, when the resuming is actually not resuming anything, but starting from scratch?
Imagine you have a dice with 10000 sides. You want to roll number 4567. You throw it 200 times, but didn't hit it.
You stop for a while, to do something else with your time. Later, you continue throwing 200 more times. You repeat this every day, until you hit 4567.
Does this make sense?

Vanitygen doesn't have a fixed starting point, it searches random addresses. There is no need to keep track of the addresses that were checked already, as the number of available addresses is big enough to never check the same address twice.
Every second that you run it, it increases the chance of finding the prefix you want. If "it says that in 8 days the chances to find it are 50%" when you start vanitygen, that exact same statement is also valid after 4 days, after 12 days, or at any other moment in time. It doesn't matter how many keys you've searched already, and it doesn't matter how long it has been running already.

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September 27, 2016, 08:35:06 PM
 #2991

This is something that I can't completely catch: it says that in 8 days the chances to find it are 50%, and I suppose the number increases while time passes.
So how is it possible that there's no "lost work" if I cut the search now and resume later, when the resuming is actually not resuming anything, but starting from scratch?
Imagine you have a dice with 10000 sides. You want to roll number 4567. You throw it 200 times, but didn't hit it.
You stop for a while, to do something else with your time. Later, you continue throwing 200 more times. You repeat this every day, until you hit 4567.
Does this make sense?

Vanitygen doesn't have a fixed starting point, it searches random addresses. There is no need to keep track of the addresses that were checked already, as the number of available addresses is big enough to never check the same address twice.
Every second that you run it, it increases the chance of finding the prefix you want. If "it says that in 8 days the chances to find it are 50%" when you start vanitygen, that exact same statement is also valid after 4 days, after 12 days, or at any other moment in time. It doesn't matter how many keys you've searched already, and it doesn't matter how long it has been running already.

OK, I get that you can throw a dice 1000 times and each time it's a new throw that has nothing to do with the previous ones.
What I don't get is why it says now Prob 1.1% and then there's that 50%.
The 1.1% was 0.1% when I first started mining.
What is that 1.1% related to? Chances to find the name in the next 8 days?

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September 27, 2016, 08:46:16 PM
 #2992

What I don't get is why it says now Prob 1.1% and then there's that 50%.
The 1.1% was 0.1% when I first started mining.
What is that 1.1% related to? Chances to find the name in the next 8 days?
Take my big dice imaginary again Cheesy You're going to throw it again, and at the 110th throw, you hit the 4567 you wanted! Out of 10,000 possibilities, you had a 1.1% chance to hit it. You're lucky!

Back to vanitygen: I've had prefixes that I found instantly, while there was a 50% chance to find it in (for example) 1 minute. But the opposite happens too: 50% chance in 1 hour and no hits within 8 hours. If you're very unlucky, your 8 day search could take months. It's just not very likely.

When you want to use 3 cores, I assume you use vanitygen? But you're also talking about games, so I assume you have a decent graphics card. Can you use oclvanitygen?

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September 27, 2016, 10:32:22 PM
 #2993

What I don't get is why it says now Prob 1.1% and then there's that 50%.
The 1.1% was 0.1% when I first started mining.
What is that 1.1% related to? Chances to find the name in the next 8 days?
Take my big dice imaginary again Cheesy You're going to throw it again, and at the 110th throw, you hit the 4567 you wanted! Out of 10,000 possibilities, you had a 1.1% chance to hit it. You're lucky!

Back to vanitygen: I've had prefixes that I found instantly, while there was a 50% chance to find it in (for example) 1 minute. But the opposite happens too: 50% chance in 1 hour and no hits within 8 hours. If you're very unlucky, your 8 day search could take months. It's just not very likely.

When you want to use 3 cores, I assume you use vanitygen? But you're also talking about games, so I assume you have a decent graphics card. Can you use oclvanitygen?

Ye I have a decent Nvidia board, but I haven't OpenCL installed.

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September 28, 2016, 02:33:43 PM
 #2994

With Nvidia driver OpenCL is included.
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September 28, 2016, 04:00:11 PM
 #2995

how much addreeses can be generated per minute ?

A smartness bitcoin which will operate as the human brain can easily scale beyond the level of traffic VISA,Trainman pgp
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September 28, 2016, 04:07:19 PM
 #2996

how much addreeses can be generated per minute ?

If my second card doesn't over heat, I can do *nearly* 50 Mkeys/sec X 60 = 3,000Mkeys/ Minutes (ie 3 Billion keys a minute...)

When it does overheat, I can do *about* 20Mkeys/sec X 60 = 1,200 Mkeys / sec or 1.2 Billion keys per minute.

I'm wringing my hands wondering if I should buy a good new GPU card to replace the overheating one, or a whole new system...

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September 28, 2016, 05:25:09 PM
 #2997

how much addreeses can be generated per minute ?

If my second card doesn't over heat, I can do *nearly* 50 Mkeys/sec X 60 = 3,000Mkeys/ Minutes (ie 3 Billion keys a minute...)

When it does overheat, I can do *about* 20Mkeys/sec X 60 = 1,200 Mkeys / sec or 1.2 Billion keys per minute.

I'm wringing my hands wondering if I should buy a good new GPU card to replace the overheating one, or a whole new system...

Your hobby is generating vanity addresses?

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September 29, 2016, 02:03:46 AM
 #2998

Your hobby is generating vanity addresses?

I paid a pretty penny for the box (second hand) My GPU cards are feeble for generating script coin, so I have put them to use here.

Quote
1GoDLiKE
Difficulty: 873388193410
[29.55 Mkey/s][total 402653184][Prob 0.0%][50% in 5.7h]

I could make you 1GoDLiKE... in under(?) 24 hours - price on Shorena's page is BTC 0.0098 http://archive.is/7KQ1W#selection-2889.0-2901.3 if you'd like one?

Post your part public key here and send to the Wallet Address below (click on the "BTC" for details...) and I'll get started.

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October 02, 2016, 10:21:26 AM
 #2999

can i use it for every altcoin?
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October 02, 2016, 10:31:26 AM
 #3000

can i use it for every altcoin?
Let me guess: you recently got (bought or hacked) this account, and now you're just spamming short lines in every topic to quickly level up towards Hero Member with 700+ Actiivty?

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