VanitySearch (Yet another address prefix finder)

[DarkStar_]

Just curious, why P2SH? AFAIK there's no benefits of P2SH over legacy addresses if it's only 1 on 1, and you pay more fees. P2SH with Segwit would be great though  

It is a first attempt, this is just to allow to run VanitySearch like this (for those who want a private address starting with 3).

Code:

-snip-
Pub Addr: 3PrivG5uq7hwXLyAHbYkFTnFkzx1FEWQdf
Priv (WIF): p2wpkh-p2sh:L2wAVD273GwAxGuEDHvrCqPfuWg5wWLZWy6H3hjsmhCvNVuCERAQ
Priv (HEX): 0xAA83217B3A11FCCFF8142EF0681AD774D7AB6822F574C4BB99CBF9B9DD01E7F2

For 2to2 segwit, I need to implement split private keys then generate a 2to2 address from 2 given public key, this is more complex but I will try to do it. That has no sense that VanitySearch output 2 full private keys in the same file, no ?

One question, 2to2 segwit is possible only with BECH32 format (bc1...) or it is also possible with Base58 (3...) ?

Ah, you meant a P2SH SegWit address. That makes more sense, I thought you were talking about a P2SH address without SegWit. I agree, there's really no point for supporting 2 of 2 multisig or any other multisig option because of how vanitygen works. If you want a challenge, trying to get split key verification working would be nice and probably more useful  

2 of 2 SegWit should be possible with Base58 I believe. You can do 2 of 3 SegWit as shown in this transaction, so it makes sense that 2 of 2 is doable.

[1714824425]

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[1714824425]

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[1714824425]

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[1714824425]

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[1714824425]

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[Jean_Luc]

Hello,

I just published the release 1.11 of VanitySearch:
https://github.com/JeanLucPons/VanitySearch/releases/tag/1.11
- Added support for segwit address P2SH and BECH32
I upload the windows release for CUDA8 asap.

Code:

C:\C++\VanitySearch\x64\Release>VanitySearch.exe -stop -gpu 3Happy
VanitySearch v1.11
Difficulty: 264104224
Search: 3Happy [Compressed]
Start Wed Apr  3 08:50:51 2019
Base Key:D1D33873F77889F1BF84683A9119A2B369758438EB1D6256E56504497F9475E7
Number of CPU thread: 7
GPU: GPU #0 GeForce GTX 1050 Ti (6x128 cores) Grid(48x128)
129.830 MK/s (GPU 113.242 MK/s) (2^27.95) [P 62.59%][70.00% in 00:00:00][0]
Pub Addr: 3HappypJDDfhbj5HasnFmctzd8Up7B5tLR
Priv (WIF): p2wpkh-p2sh:L3q4EBHk5eiuxhsNagsmY5aK8sCNd6zdh6gmqpVG6S666GbvNgcP
Priv (HEX): 0xC5351D98B0B2DE1BD6B7CACADA9A2BE4E09B849FB8816D1CEEC5A08C63A3E837

Code:

C:\C++\VanitySearch\x64\Release>VanitySearch.exe -stop bc1queen
VanitySearch v1.11
Difficulty: 1048576
Search: bc1queen [Compressed]
Start Wed Apr  3 08:56:32 2019
Base Key:6F907FDE30067DCDE802739E47C6463FE49C32791242458C2D141212DB107A55
Number of CPU thread: 8

Pub Addr: bc1queenu8kq0vjrl509w88mwefdu4pztkdvlst4at
Priv (WIF): p2wpkh:L24UVC7ZYgYjy4cStQvBHD3quJkeYN3xHYBqFjTYjJjwmht84jsg
Priv (HEX): 0x906F8021CFF9823217FD8C61B839B9BED612AA6D9D065AAF92BE4C79F5251BBA

Thanks for testing

[asche]

Thank you so much. This tool is perfect now

[Lolo54]

Hello, here are the results of my tests first on my old hardware Core I5-2430M - NVIDIA GEFORCE GT520M that only supports CUDA 8

Code:

VanitySearchCUDA10.111.exe 1Testrrr
VanitySearch v1.11
Difficulty: 51529903411245
Search: 1Testrrr [Compressed]
Start Wed Apr  3 18:26:55 2019
Base Key:D4098AD1EC1DEB76F2A73F99D5FB7C0BAE6DDD0E5D956D3EE5501891D2377A1D
Number of CPU thread: 4
4.175 MK/s (GPU 0.000 MK/s) (2^25.61) [P 0.00%][50.00% in 98.9d][0]

Then another more efficient configuration
intel core i5-9600k 3.70 GHz  RAM32 GO  GPU NVIDIA 2070

Code:

VanitySearch111.exe -gpu 1Testrrr
VanitySearch v1.11
Difficulty: 51529903411245
Search: 1Testrrr [Compressed]
Start Wed Apr  3 18:36:00 2019
Base Key:926C0B465C72AFA454BEBE9F16EECCD1BFCBF2520FACAD90CD1DE23141769E4B
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
1535.880 MK/s (GPU 1470.257 MK/s) (2^31.52) [P 0.01%][50.00% in 06:27:06][0]

[code]
VanitySearch111.exe -gpu 3BTestrrr
VanitySearch v1.11
Difficulty: 51529903411245
Search: 3BTestrrr [Compressed]
Start Wed Apr  3 18:43:07 2019
Base Key:307D1359B8316234060503DDD4664191869953DE79243998184856E717B631B1
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
665.464 MK/s (GPU 647.760 MK/s) (2^33.25) [P 0.02%][50.00% in 14:53:15][0]

Code:

VanitySearch111.exe -gpu -r 500000 3BTestrrr
VanitySearch v1.11
Difficulty: 51529903411245
Search: 3BTestrrr [Compressed]
Start Wed Apr  3 18:46:37 2019
Base Key: Randomly changed every 500000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
672.639 MK/s (GPU 654.885 MK/s) (2^33.70) [P 0.03%][50.00% in 14:43:38][0]

Code:

VanitySearch111.exe -gpu -r 2000 -t 6 3Btestrrr
VanitySearch v1.11
Difficulty: 51529903411245
Search: 3Btestrrr [Compressed]
Start Wed Apr  3 18:48:13 2019
Base Key: Randomly changed every 2000 Mkeys
Number of CPU thread: 6
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
421.783 MK/s (GPU 405.673 MK/s) (2^33.37) [P 0.02%][50.00% in 23:29:17][0]

Code:

VanitySearch111.exe -gpu -r 1000 bc1qrmnttuss
VanitySearch v1.11
Difficulty: 1099511627776
Search: bc1qrmnttuss [Compressed]
Start Wed Apr  3 18:51:02 2019
Base Key: Randomly changed every 1000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
947.492 MK/s (GPU 908.299 MK/s) (2^32.94) [P 0.75%][50.00% in 00:13:15][0]

everything works well including
using -i and -o. Prefixes starting with 3 seem longer to calculate, those starting with 1 and bc1 faster
Thanks again to Jean_Luc for this beautiful update and for all the new features, VanitySearch is now well done[/code]

[Jean_Luc]

1.11 available for CUDA8

[Lolo54]

1.11 available for CUDA8

Super thanks Jean-Luc, look I just edited my top post to complete my tests
I tried to be as complete as possible by showing various commands good -i and -o everyone will put what they want in -i 

[Jean_Luc]

Yes, P2WPKH-P2SH (starting with '3') addresses are slower, there are 2 hash160 to compute per address, only 1 for P2PKH (starting with '1') and P2WPKH-BECH32 (starting with 'bc1q').

Edit:
Interesting test, you notice also that the -r option is costly for nothing...

[Lolo54]

Good morning,
I don’t know why but with CUDA 8 equivalent parameter seems to calculate +12% faster than CUDA 10

cuda 10

Code:

-gpu 1Testtttt
VanitySearch v1.11
Difficulty: 2988734397852221
Search: 1Testtttt [Compressed]
Start Thu Apr  4 13:46:27 2019
Base Key:9FF416E41E27BCE6DCC117E3EC28D088EA16EB7CF988BEABDFE45490162F0C16
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
1222.410 MK/s (GPU 1195.740 MK/s) (2^36.49) [P 0.00%][50.00% in 19.7d][0]

cuda 8

Code:

VanitySearchCUDA8.111 -gpu 1Testtttt
VanitySearch v1.11
Difficulty: 2988734397852221
Search: 1Testtttt [Compressed]
Start Thu Apr  4 13:49:35 2019
Base Key:A9CEB9932E377B3FC4517C8AF508432AF71CEA2276FDF3E1E97FB0F0D02917F9
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
1369.064 MK/s (GPU 1342.856 MK/s) (2^34.54) [P 0.00%][50.00% in 17.6d][0]

[Jean_Luc]

That's strange, on my GTX 1050 Ti, CUDA8 is slightly slower (~3%) than CUDA10. On my GTX 645 it is similar.
Did you wait that key rate is well stabilized ?

Code:

C:\C++\VanitySearch\x64\Release>VanitySearch.exe -t 0 -stop -gpu 1Testtttt
VanitySearch v1.11
Difficulty: 2988734397852221
Search: 1Testtttt [Compressed]
Start Thu Apr  4 14:18:30 2019
Base Key:28B34C47FDB37FB3175059450AFD3D301F682B2F16217EEE25AD83A42939A1B6
Number of CPU thread: 0
GPU: GPU #0 GeForce GTX 1050 Ti (6x128 cores) Grid(48x128)
226.483 MK/s (GPU 226.483 MK/s) (2^32.65) [P 0.00%][50.00% in 106.4d][0]

Code:

C:\C++\VanitySearch\x64\Release>VanitySearchCUDA8.exe -t 0 -stop -gpu 1Testtttt
VanitySearch v1.11
Difficulty: 2988734397852221
Search: 1Testtttt [Compressed]
Start Thu Apr  4 14:19:17 2019
Base Key:290C9148BE403FE1904ACA72641003E9B04507E30A054DA64DB732963C3080D0
Number of CPU thread: 0
GPU: GPU #0 GeForce GTX 1050 Ti (6x128 cores) Grid(48x128)
219.406 MK/s (GPU 219.406 MK/s) (2^32.04) [P 0.00%][50.00% in 109.8d][0]

[Lolo54]

That's strange, on my GTX 1050 Ti, CUDA8 is slightly slower (~3%) than CUDA10. On my GTX 645 it is similar.
Did you wait that key rate is well stabilized ?

ok that is correct Jean_Luc actually waiting 2min the stabilization between the 2 versions is much less important yes about 3% at me too

[Lolo54]

Code:

[code]Hello
I noticed a few bugs without knowing where it might have come from?
Some error messages
first under CUDA 10 when the search is started with 3 pattern with GPU // without using GPU no problems

[code]
VanitySearch111.exe -gpu -r 1000000 -b -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sat Apr  6 15:26:11 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
337.525 MK/s (GPU 324.861 MK/s) (2^32.33) [P 100.00%][99.00% in 00:00:00][2409]
Warning, wrong private key generated !
  Addr :1TeSstduvsJfM9wAJ8UvjN41mvAy9U98J
  Check:1BW7YEF2dEFYpymuysVHywrvQnFcJHMt3x
349.466 MK/s (GPU 338.776 MK/s) (2^33.45) [P 100.00%][99.00% in 00:00:00][5103]
Warning, wrong private key generated !
  Addr :1TeSoeK3628J1GuTqSfcrUSp6UW45Ffmf
  Check:1NwdtKgE7oH4CMdau7w37vHmWN4nuRaegW

The same search without using the GPU no error message seems to happen

Code:

VanitySearch111.exe -r 1000000 -b -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sat Apr  6 15:29:51 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 6
12.683 MK/s (GPU 0.000 MK/s) (2^30.20) [P 100.00%][99.00% in 00:00:00][530]

4 Pattern with or without the -gpu command no error message

Code:

VanitySearch111.exe -gpu -r 1000000 -b -o vanity.txt 1TeST
VanitySearch v1.11
Difficulty: 264104224
Search: 1TeST [Compressed or Uncompressed]
Start Sat Apr  6 15:32:47 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
460.813 MK/s (GPU 450.125 MK/s) (2^34.85) [P 100.00%][99.00% in 00:00:00][232]

Code:

VanitySearch111.exe -r 1000000 -b -o vanity.txt 1TeST
VanitySearch v1.11
Difficulty: 264104224
Search: 1TeST [Compressed or Uncompressed]
Start Sat Apr  6 15:34:47 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 6
12.468 MK/s (GPU 0.000 MK/s) (2^31.08) [P 99.98%][99.00% in 00:00:00][13]

without using the -b command more error even with -gpu and 3 pattern
It seems that the calculation in uncompressed poses worries using the GPU with less than 4 pattern (CUDA 10) and prevents the launch of Vanitysearch under CUDA 8

Under CUDA error message using the -gpu and -b command while without any problem

Code:

VanitySearchCUDA8.111.exe -b -r 100000 -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sat Apr  6 15:45:09 2019
Base Key: Randomly changed every 100000 Mkeys
Number of CPU thread: 4
1.724 MK/s (GPU 0.000 MK/s) (2^26.94) [P 100.00%][99.00% in 00:00:00][39]

with the command - gpu CUDA 8 with 3 or 4 pattern message error unless the -b command is not used

Code:

VanitySearchCUDA8.111.exe -gpu -b -r 100000 -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sat Apr  6 15:48:40 2019
Base Key: Randomly changed every 100000 Mkeys
Number of CPU thread: 3
GPU: GPU #0 GeForce GT 520M (1x48 cores) Grid(8x128)
GPUEngine: Launch: the launch timed out and was terminated 00:00:00][0]

[/code]
VanitySearchCUDA8.111.exe -gpu -o vanity.txt 1TeST
VanitySearch v1.11
Difficulty: 264104224
Search: 1TeST [Compressed]
Start Sat Apr  6 15:54:54 2019
Base Key:486E8062406D92DBF21C6B8DB09A4733D7F2685A2E30FCC3714B400E5E6DECAD
Number of CPU thread: 3
GPU: GPU #0 GeForce GT 520M (1x48 cores) Grid(8x128)
9.482 MK/s (GPU 6.621 MK/s) (2^30.78) [P 99.91%][99.00% in 00:00:00][11]
[/CODE]

Code:

VanitySearchCUDA8.111.exe -gpu -b -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sat Apr  6 16:01:48 2019
Base Key:719ACDC6941DEB67E424B31DB0A0592777C5297E7ABB21E6091DA47CA6A80C2F
Number of CPU thread: 3
GPU: GPU #0 GeForce GT 520M (1x48 cores) Grid(8x128)
GPUEngine: Launch: the launch timed out and was terminated 00:00:00][0]

Code:

VanitySearchCUDA8.111.exe -gpu -r 50000 -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed]
Start Sat Apr  6 15:59:00 2019
Base Key: Randomly changed every 50000 Mkeys
Number of CPU thread: 3
GPU: GPU #0 GeForce GT 520M (1x48 cores) Grid(8x128)
10.593 MK/s (GPU 7.053 MK/s) (2^28.05) [P 100.00%][99.00% in 00:00:00][56]

the use of the -b command by associating with the -gpu under CUDA 8 seems to prevent the launch of VanitySearch under CUDA 10 but with 3 pattern ex 1TeS error messages appear while from 4pattern ex 1TeST more error messages
 

[Jean_Luc]

Hello
Thanks for the report.
I try with both CUDA8 and CUDA10 using -b option and I generated ~2^33 keys with the same pattern as you did.
It has also found ~5000 matches without error in my case using a GTX 645.
Concerning the timeout of your GT 520M try with -g 4, a CUDA kernel has a limit of execution time, searching with -b is longer.
I will make more test on other hardware ASAP.

Code:

C:\C++\VanitySearch\x64\Release>VanitySearchCUDA8.exe -r 100000 -b -o output.txt -gpu 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sat Apr  6 17:07:14 2019
Base Key: Randomly changed every 100000 Mkeys
Number of CPU thread: 3
GPU: GPU #0 GeForce GTX 645 (3x192 cores) Grid(24x128)
13.944 MK/s (GPU 12.859 MK/s) (2^33.43) [P 100.00%][99.00% in 00:00:00][5049]

Code:

C:\C++\VanitySearch\x64\Release>VanitySearch.exe -r 100000 -b -o output.txt -gpu 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sat Apr  6 17:33:01 2019
Base Key: Randomly changed every 100000 Mkeys
Number of CPU thread: 3
GPU: GPU #0 GeForce GTX 645 (3x192 cores) Grid(24x128)
14.804 MK/s (GPU 13.716 MK/s) (2^33.51) [P 100.00%][99.00% in 00:00:00][5315]

[Jean_Luc]

Few more questions:
Does the bug concerning the "wrong generated key" is reproducible and do you always get a wrong key every ~2500 matches ?
Does it happen without the -r option ?

[Lolo54]

Few more questions:
Does the bug concerning the "wrong generated key" is reproducible and do you always get a wrong key every ~2500 matches ?
Does it happen without the -r option ?

Yes Jean_Luc is reproducible even without the random which does not seem to affect the error

Code:

VanitySearch111.exe -gpu -b -o vanity.txt 1teS
VanitySearch v1.11
Difficulty: 4553521
Search: 1teS [Compressed or Uncompressed]
Start Sat Apr  6 19:46:06 2019
Base Key:BCC54F37771BAEE82D1AEBE1CA891F69718D285F9E90560C334ACA56DA3DCA63
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
163.936 MK/s (GPU 158.026 MK/s) (2^31.53) [P 100.00%][99.00% in 00:00:00][1365]
Warning, wrong private key generated !
  Addr :1teSp8d6dFj8ZCQhcT5SXMHdfdwV2kR5S
  Check:147sQLxg75aoYKc4E9tQxFDvyVEzj3TiHE

Warning, wrong private key generated !
  Addr :1teSB48V2TNi1aBnNEzpR9xENsNHChJci
  Check:1JYfB2NDLAXCB5c2UEYLwhb3xm7N7C5kZP
163.657 MK/s (GPU 157.807 MK/s) (2^31.74) [P 100.00%][99.00% in 00:00:00][1663]

This seems to be due to the EXCLUSIVELY calculation of the unzipped keys since by putting only -u the error also occursThis seems to be due to the EXCLUSIVELY calculation of the unzipped keys since by putting only -u the error also occurs

Code:

VanitySearch111.exe -gpu -r 1000000 -u -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Uncompressed]
Start Sat Apr  6 19:49:36 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
292.479 MK/s (GPU 280.867 MK/s) (2^32.27) [P 100.00%][99.00% in 00:00:00][1177]
Warning, wrong private key generated !
  Addr :1TeSCTxiHYpZzhY8CimJCwbrqTvtzV1gg
  Check:1EhdJ3k1Vhs7BZGQmFgZhDiBGgogQz8j5w
278.226 MK/s (GPU 268.900 MK/s) (2^32.40) [P 100.00%][99.00% in 00:00:00][1271]

no recurrence on the number of match 2500 or not instead on CUDA 10 the "bug" is not awkward since the rate of calculation error is about 0.05% which is a detail of no importance in fact but I point out to you
The most annoying is for those running only on CUDA 8 (like me with my old hardware) but who can’t launch with -b Vanitysearch instead no errors without -b it works well

[Lolo54]

Pourtant aucune erreur -check tout est ok 

Code:

VanitySearch111.exe -check
GetBase10() Results OK
Add() Results OK : 854.701 MegaAdd/sec
Mult() Results OK : 34.014 MegaMult/sec
Div() Results OK : 6.378 MegaDiv/sec
ModInv()/ModExp() Results OK
ModInv() Results OK : 152.621 KiloInv/sec
IntGroup.ModInv() Results OK : 2.801 MegaInv/sec
ModMulK1() Results OK : 4.613 MegaMult/sec
ModSquareK1() Results OK : 5.951 MegaMult/sec
ModMulK1order() Results OK : 4.026 MegaMult/sec
ModSqrt() Results OK !
Check Generator :OK
Check Double :OK
Check Add :OK
Check GenKey :OK
Adress : 15t3Nt1zyMETkHbjJTTshxLnqPzQvAtdCe OK!
Adress : 1BoatSLRHtKNngkdXEeobR76b53LETtpyT OK!
Adress : 1Test6BNjSJC5qwYXsjwKVLvz7DpfLehy OK!
Adress : 16S5PAsGZ8VFM1CRGGLqm37XHrp46f6CTn OK!
Adress : 1Tst2RwMxZn9cYY5mQhCdJic3JJrK7Fq7 OK!
Adress : 3CyQYcByvcWK8BkYJabBS82yDLNWt6rWSx OK!
Adress : 31to1KQe67YjoDfYnwFJThsGeQcFhVDM5Q OK!
Adress : bc1q6tqytpg06uhmtnhn9s4f35gkt8yya5a24dptmn OK!
Check Calc PubKey (full) 1ViViGLEawN27xRzGrEhhYPQrZiTKvKLo :OK
Check Calc PubKey (even) 1Gp7rQ4GdooysEAEJAS2o4Ktjvf1tZCihp:OK
Check Calc PubKey (odd) 18aPiLmTow7Xgu96msrDYvSSWweCvB9oBA:OK
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
Seed: 3768113328
472.198 MegaKey/sec
ComputeKeys() found 6902 items , CPU check...

[Jean_Luc]

The check function checks only one kernel call, here the problem happens after many calls.
I tried with my GTX 1050 and I didn't manage to reproduce the issue. ~2^34 keys, ~10000 matches without problems.
Could you try on the RTX 2070 to launch with -g 144 to see if it changes something ?

The most annoying is for those running only on CUDA 8 (like me with my old hardware) but who can’t launch with -b Vanitysearch instead no errors without -b it works well

Did you try with -g 4 ?

[Lolo54]

the mistake is still there on rtx 2070 with -g 144 and with -g 288
on Cuda 8 with -g 4 everything seems ok VanitySearch is running worry-free even with -b and no error message everything seems ok

Code:

VanitySearch111.exe -gpu -g 144 -r 1000000 -b -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sun Apr  7 01:53:48 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(144x128)
181.527 MK/s (GPU 175.730 MK/s) (2^31.57) [P 100.00%][99.00% in 00:00:00][1476]
Warning, wrong private key generated !
  Addr :1TeSeqmnn8MyYXaVYeES2SaPnUAuWQbxG
  Check:13GydPaDnhPLLjJk2XyXEABtTtBmTNkUxb
182.163 MK/s (GPU 176.372 MK/s) (2^32.17) [P 100.00%][99.00% in 00:00:00][2202]

Code:

VanitySearch111.exe -gpu -g 288 -b -r 1000000 -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sun Apr  7 02:03:35 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
167.236 MK/s (GPU 161.537 MK/s) (2^33.64) [P 100.00%][99.00% in 00:00:00][5831]
Warning, wrong private key generated !
  Addr :1TeSgBkRY3wtxfVX342SLGZBXcb8Fi2bC
  Check:13CSJrjs5kvtbVtnyE39GNMq3UgjQcm9vq
150.590 MK/s (GPU 144.750 MK/s) (2^34.36) [P 100.00%][99.00% in 00:00:00][9619]
Warning, wrong private key generated !
  Addr :1TeSL4K1P7SGqhVyKSFoXH4iixygLi3eP
  Check:19V2ZjTcDjtXy1cgrm7iM7xG5pR3ofJrrM
163.799 MK/s (GPU 157.963 MK/s) (2^34.39) [P 100.00%][99.00% in 00:00:00][9825]
Warning, wrong private key generated !
  Addr :1TeSDuJJy2NUYAqBmzF58zAsZ4vn26CwM
  Check:1F2Y9NQwD1qoPR9jWdALLdmLXatXxepP9n
167.448 MK/s (GPU 161.686 MK/s) (2^35.14) [P 100.00%][99.00% in 00:00:00][16459]

Code:

VanitySearchCUDA8.111.exe -gpu -g 4 -r 1000000 -b -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Compressed or Uncompressed]
Start Sun Apr  7 01:59:05 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 3
GPU: GPU #0 GeForce GT 520M (1x48 cores) Grid(4x128)
3.553 MK/s (GPU 2.503 MK/s) (2^31.72) [P 100.00%][99.00% in 00:00:00][2545]

[Jean_Luc]

the mistake is still there on rtx 2070 with -g 144 and with -g 288

mmm... Strange... I will try to make a long test. It would be great if other uses can also test this case:
VanitySearch.exe -gpu -b -o vanity.txt 1TeS
and run it up to find at least ~10000 matches (~2^34 keys) in order to confirm that it comes from VanitySearch and not from your driver and/or hardware !

on Cuda 8 with -g 4 everything seems ok VanitySearch is running worry-free even with -b and no error message everything seems ok

OK, that's confirm that with -b option and the default setting, your old GPU exceed the timeout.

Thanks for the reports

[Lolo54]

the error is also present with -u

Code:

VanitySearch111.exe -gpu -r 1000000 -g 288 -u -o vanity.txt 1TeS
VanitySearch v1.11
Difficulty: 4553521
Search: 1TeS [Uncompressed]
Start Sun Apr  7 12:55:56 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)

Warning, wrong private key generated !
  Addr :1TeSe9xEChqvbe92yfARYuL5ZNiuY5iuR
  Check:1NJFrr7R8SKcZvnbRFc6k1NL2ZVEHXat7d
607.423 MK/s (GPU 564.899 MK/s) (2^30.18) [P 100.00%][99.00% in 00:00:00][264]
Warning, wrong private key generated !
  Addr :1TeScAAKnPYiubeMp9zY1oksSwHvQJyo5
  Check:19MTYSffqZLhXy3ShmWRb4rBY8oujWt8tG
594.454 MK/s (GPU 564.622 MK/s) (2^31.15) [P 100.00%][99.00% in 00:00:00][536]

the error seems to be no longer present if the search is greater than 3 characters 1TeSt

Code:

VanitySearch111.exe  -gpu -r 1000000 -g 288 -u -o vanity.txt 1TeSt
VanitySearch v1.11
Difficulty: 264104224
Search: 1TeSt [Uncompressed]
Start Sun Apr  7 13:09:54 2019
Base Key: Randomly changed every 1000000 Mkeys
Number of CPU thread: 5
GPU: GPU #0 GeForce RTX 2070 (36x64 cores) Grid(288x128)
737.703 MK/s (GPU 720.716 MK/s) (2^38.21) [P 100.00%][99.00% in 00:00:00][1183]

[Lolo54]

Hello
By default it is the dedicated memory of the graphics processor that is used but would it be possible also to force the use of the shared ram? Could this increase the speed of execution or am I wrong?