Vanitygen: Vanity bitcoin address generator/miner [v0.22]

[LoyceV]

I don't recommend using this option as the default seed should be secure and random enough and if you use this option to use a seed from a static file, someone else with the same seed could generate the private keys for the addresses you create.

Option -s uses a random file as extra input. If you search for the same prefix twice, you don't get the same result. You can easily test this for yourself, I just did, and got 4 different addys.

[1714098591]

1714098591

[1714098591]

1714098591

[1714098591]

1714098591

[kolloh]

I don't recommend using this option as the default seed should be secure and random enough and if you use this option to use a seed from a static file, someone else with the same seed could generate the private keys for the addresses you create.

Option -s uses a random file as extra input. If you search for the same prefix twice, you don't get the same result.

Are you sure its extra input and not replacing the RNG data that is normally used?

samr7 indicated the following in the initial post:

Nonetheless, if you feel the default RNG is unable to provide numbers that are sufficiently difficult to guess, vanitygen can be directed to seed the RNG from an external file using the -s option

That line seems to indicate its seeding entirely from the external file and not just using it as additional data.

[adaseb]

Yes it definitely adds to the random seed and definitely doesn't set it to some initial value. I've been searching for an easy way to mod it so it would search sequentially so I could get the 51st bit in that 32 BTC challenge thread.



By the way I launched a Vanity Generation Service at https://bitcointalk.org/index.php?topic=1748422.0
Basically I offer free easy vanity generation and charge for harder to find vanities. So if you have a very slow CPU and want a basic vanity I can find it for you instead.

IF this post is considered spam, I apologize and will remove it.

[adaseb]

Just wondering if there is anyway to disable the CPU checking when using GPUs on oclvanitygen.

It seems that any GPUs connected to a 1x PCIe slot run at 50% the speed compared to the main GPU thats connected to the 16x PCIe slot.

Seems like there is a bandwidth bottleneck creating the slowdown.

[jacktheking]

So I recently spend three hours or so generating a new vanitygen address on my Notebook that run on AMD graphic processing unit. Before it reaches 50% it show something like

Code:

Match idx: 0
CPU hash: [removed]
GPU hash: [removed]
Found delta: [removed] Start delta: [removed]

I Googled for this 'error' and it seem that this only happen when the GPU code do not match with the CPU code, hence not showing us the private key. The vanity address I was trying to generate was 1nTech.

I couldn't find a fix for this problem online - other than using my CPU to search. I followed an advice and generate short vanity address to see if this problem will occur or not, it does not occur and I manage to get the private key - for example 1111.

Anyone have any fix for this?

(I tried upgrading my AMD graphic processing unit but somehow my Windows have 'blinking' issue so I revert the upgrade.)

[xhomerx10]

So I recently spend three hours or so generating a new vanitygen address on my Notebook that run on AMD graphic processing unit. Before it reaches 50% it show something like

Code:

Match idx: 0
CPU hash: [removed]
GPU hash: [removed]
Found delta: [removed] Start delta: [removed]

I Googled for this 'error' and it seem that this only happen when the GPU code do not match with the CPU code, hence not showing us the private key. The vanity address I was trying to generate was 1nTech.

I couldn't find a fix for this problem online - other than using my CPU to search. I followed an advice and generate short vanity address to see if this problem will occur or not, it does not occur and I manage to get the private key - for example 1111.

Anyone have any fix for this?

(I tried upgrading my AMD graphic processing unit but somehow my Windows have 'blinking' issue so I revert the upgrade.)

 A while ago, OGNasty told us about https://lifeboat.com/oclvanitygen which will run with the latest radeon drivers.
Perhaps you could try that version instead.

[anticolay26]

So, does anyone else have/had an issue where olcvanitygen never finds a matching key, and just continues searching regardless of how easy the request is?

[shorena]

So, does anyone else have/had an issue where olcvanitygen never finds a matching key, and just continues searching regardless of how easy the request is?

Yes, in regex mode with an invalid "prefix", which is to be expected.

[Timelord2067]

I just tested http://lifeboat.com/oclvanitygen (oclvanitygen64.exe) on Geforce GTX 750 Ti 2 GB, got about 17 MKey/s. Works fine.

Device: GeForce GTX 750 Ti
Vendor: NVIDIA Corporation (10de)
Driver: 340.52
Profile: FULL_PROFILE
Version: OpenCL 1.1 CUDA
Max compute units: 5
Max workgroup size: 1024
Global memory: -2147483648
Max allocation: 536870912
OpenCL compiler flags: -DPRAGMA_UNROLL -cl-nv-verbose
Loading kernel binary 2e1a31891b123f797bad2de965a42f5f.oclbin
Grid size: 2560x2048
Modular inverse: 5120 threads, 1024 ops each
Using OpenCL prefix matcher

Have just picked up a GTX 750 Ti brand new dirt cheep to replace an overheating AMD Radeon R9 200 / HD 7900 Series card.  (one of two in the PC bought second hand) and can confirm am just scraping 17 MKeys/sec using the lifeboat / oclvanitygen64.exe

[DarkStar_]

I would recommend cryptoglance as it is free and the lay out is amazing.

https://cryptoglance.org

been using for a while now so if you have any questions pm me

vanitygen isn't a miner in the sense of mining blocks on the bitcoin network, but rather one that "mines" private keys, until you find one with the prefix you want or you stop it. CryptoGlance AFAIK doesn't support vanitygen, nor does it really need to as people don't make huge farms or even have a dedicated miner for vanitygen, since the need for vanity isn't a lot.

[BTCMORGAN]

Does anyone know how to get OCLVanitygen to work with 2 r9 290x cards?  I am using the lifeboat version.  Everytime I try to run the .bat file that I created, it just opens, list the specs of the cards and just closes.   I tried to install the old catalyst v. 12.7 software as some suggested earlier in the thread, but it doesn't work at all.  For reference, I have the new crimson software installed.

Any help would be really appreciated.

[kolloh]

Does anyone know how to get OCLVanitygen to work with 2 r9 290x cards?  I am using the lifeboat version.  Everytime I try to run the .bat file that I created, it just opens, list the specs of the cards and just closes.   I tried to install the old catalyst v. 12.7 software as some suggested earlier in the thread, but it doesn't work at all.  For reference, I have the new crimson software installed.

Any help would be really appreciated.

What arguments are you passing to oclvanitygen? If you want to use multiple cards, you have to pass both device IDs with -D similar to the following:

Code:

oclvanitygen.exe -D 0:0 -D 0:1 1test

[BTCMORGAN]

Does anyone know how to get OCLVanitygen to work with 2 r9 290x cards?  I am using the lifeboat version.  Everytime I try to run the .bat file that I created, it just opens, list the specs of the cards and just closes.   I tried to install the old catalyst v. 12.7 software as some suggested earlier in the thread, but it doesn't work at all.  For reference, I have the new crimson software installed.

Any help would be really appreciated.

What arguments are you passing to oclvanitygen? If you want to use multiple cards, you have to pass both device IDs with -D similar to the following:

Code:

oclvanitygen.exe -D 0:0 -D 0:1 1test

I used that line, but the screen just pops up and closes. 

[kolloh]

Does anyone know how to get OCLVanitygen to work with 2 r9 290x cards?  I am using the lifeboat version.  Everytime I try to run the .bat file that I created, it just opens, list the specs of the cards and just closes.   I tried to install the old catalyst v. 12.7 software as some suggested earlier in the thread, but it doesn't work at all.  For reference, I have the new crimson software installed.

Any help would be really appreciated.

What arguments are you passing to oclvanitygen? If you want to use multiple cards, you have to pass both device IDs with -D similar to the following:

Code:

oclvanitygen.exe -D 0:0 -D 0:1 1test

I used that line, but the screen just pops up and closes.  

Try opening up a command line prompt and running it so you can see the full output of the command. If you are in a recent version of Windows, you can shift + right click in Windows Explorer and select "Open command window here" while in the folder containing oclvanitygen. This will allow you to view the full output and any errors that it may be showing.

[BTCMORGAN]

Does anyone know how to get OCLVanitygen to work with 2 r9 290x cards?  I am using the lifeboat version.  Everytime I try to run the .bat file that I created, it just opens, list the specs of the cards and just closes.   I tried to install the old catalyst v. 12.7 software as some suggested earlier in the thread, but it doesn't work at all.  For reference, I have the new crimson software installed.

Any help would be really appreciated.

What arguments are you passing to oclvanitygen? If you want to use multiple cards, you have to pass both device IDs with -D similar to the following:

Code:

oclvanitygen.exe -D 0:0 -D 0:1 1test

I used that line, but the screen just pops up and closes.  

Try opening up a command line prompt and running it so you can see the full output of the command. If you are in a recent version of Windows, you can shift + right click in Windows Explorer and select "Open command window here" while in the folder containing oclvanitygen. This will allow you to view the full output and any errors that it may be showing.

This is the error I'm getting:

__constant bignum bn_zero;
                  ^
error: constant address space qualified variables are required to be initialized
2 errors generated.

error: Clang front-end compilation failed!
Frontend phase failed compilation.
Error: Compiling CL to IR

[kolloh]

This is the error I'm getting:

__constant bignum bn_zero;
                  ^
error: constant address space qualified variables are required to be initialized
2 errors generated.

error: Clang front-end compilation failed!
Frontend phase failed compilation.
Error: Compiling CL to IR

I saw someone else having this issue and they mentioned that the following worked:
1. Open "calc_addrs.cl" with text editor.
2. Go to line 180 and change __constant bignum bn_zero; to __constant bignum bn_zero = { 0 };
3. Run with -S option enabled, otherwise it will throw out hashing mismatches instead of privkeys.

[Chris!]

Could someone direct me to where exactly this lifeboat vanitygen is? Can I download it from github or am I missing something? Also could you link me to where it's explained what is does/if it's different/why it's better? Googling just keeps coming up with reddit post after reddit post but no real information for me... Sorry for the newb questions rofl.

[xhomerx10]

Could someone direct me to where exactly this lifeboat vanitygen is? Can I download it from github or am I missing something? Also could you link me to where it's explained what is does/if it's different/why it's better? Googling just keeps coming up with reddit post after reddit post but no real information for me... Sorry for the newb questions rofl.

http://lifeboat.com/oclvanitygen

 It will start the download right away.

[LoyceV]

I recently transfered 11 inputs from a vanity addy, and it made me realize the transaction gets quite big, which requires higher fees. Using vanity addresses instead of compressed addresses also adds more to the already large number of unconfirmed transactions.

I just found out Lifeboat supports compressed keys, which are 15% faster to find (source: README in this zip) than regular keys! But it's specialized for AMD, and available for Windows only. So I can't use it.
The last version of vanitygen is 4 years old now. It would be very nice to see an update that includes compressed keys. Unfortunately I don't have the skills to chance the source myself. It might be a relatively small change to add compressed keys.

[Timelord2067]

I just tested http://lifeboat.com/oclvanitygen (oclvanitygen64.exe) on Geforce GTX 750 Ti 2 GB, got about 17 MKey/s. Works fine.

Device: GeForce GTX 750 Ti
Vendor: NVIDIA Corporation (10de)
Driver: 340.52
Profile: FULL_PROFILE
Version: OpenCL 1.1 CUDA
Max compute units: 5
Max workgroup size: 1024
Global memory: -2147483648
Max allocation: 536870912
OpenCL compiler flags: -DPRAGMA_UNROLL -cl-nv-verbose
Loading kernel binary 2e1a31891b123f797bad2de965a42f5f.oclbin
Grid size: 2560x2048
Modular inverse: 5120 threads, 1024 ops each
Using OpenCL prefix matcher

Have just picked up a GTX 750 Ti brand new dirt cheep to replace an overheating AMD Radeon R9 200 / HD 7900 Series card.  (one of two in the PC bought second hand) and can confirm am just scraping 17 MKeys/sec using the lifeboat / oclvanitygen64.exe

I spoke too soon, after about 24 hours I get this error:

Code:

Next match difficulty: 1660363320400 (1234 prefixes)
[16.68 Mkey/s][total 3590890455040][Prob 88.5%][90% in 3.9h]                   c
lWaitForEvents(NDRange,1): CL_OUT_OF_RESOURCES
Device: GeForce GTX 750 Ti
Vendor: NVIDIA Corporation (10de)
Driver: 353.62
Profile: FULL_PROFILE
Version: OpenCL 1.2 CUDA
Max compute units: 5
Max workgroup size: 1024
Global memory: -2147483648
Max allocation: 536870912
clEnqueueMapBuffer(0): CL_INVALID_COMMAND_QUEUE
ERROR: Could not map result buffer for slot 1

The most recent user to ask about this error https://bitcointalk.org/index.php?topic=25804.msg12460635;topicseen#msg12460635 was told to del the <longhexstring>.oclbin (which I did), however, I upgraded the drivers from the ones on the install DVD after getting that error message, now it wants to recompile the kernel (and still crashes after 24 hours) every time I start it.

Am searching through previous posts...