Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux)

[nowaltcoin]

Hi,


just to know: who could tell me the hashrate for 7850 and r9 270 not overclocked and undervolted.

Since Version 8.0 i'am thinking about to switch my rigs from ethos (ethereum) to W 7 64-Bit and claymore (zcash)

thx

r7 370 currently 110h/s stock 985mhz core.
7850 is the same? r7 265 too.... right now i'm confused (thanks amd)

Let's mak it more easy:

r7 370 is a rebranded r7 265... r7 265 is a rebranded HD 7850.... TDP 110w, doing 110H/s (Trinidad / Pitcairn pro)
r7 370x is a rebranded r9 270x... r9 270x is a rebranded HD 7870 XT... TDP 150-180w, doing a bit less than 110H/s. (Trinidad xt, Pitcairn XT)

Why a r7 370 (7850) beats a 270x? I don't know... theyre the same "chip" in different editions (pro vs xt)...somehow it does, thanks to the drivers, and AMD.

note: R7 265 overclocks like a motherf*cker. It's one of the weirdest cards AMD has ever made

thx but as far as i know ist a R7 265 a rebranded HD 7850 and a r7 370 a rebranded r 9 270 (without x)

so R7 370 = R9 270 = 110 H/s
so R7 265 = HD7850 = 92 H/s    ??

have a nice day

Could you test your HD 7850 at stock speed (860mhz core?) and tell me what's the hashrate?
Happy mining, currently ZEC (and for the last weeks) is being more pofitable than eth, better point your rigs to a zec pool.
(If you want to hodl eth, exchange zec for it)

I have only one HD7850 with 860mhz the other 4 cards have 1000mhz. i will do an dual boot next week (different disk) with W7 64... so i can switch from ethereum to zec just switching the disk......than i will tell you

ok  here it is  4 * HD 7850 2 GB 1000Mhz   99 H/s total 400 H/s (Win 7 64 bit)
Have a nice day

[ujang1]

Claymore already have periods when a new version is available?

[aaronsace]

Zecminer64.exe = virus?

Kaspersky said...

Any ideas?

It's a 300 page forum; of course it's not a virus.

[rampaige]

Hello
I have an issue around claymore zcash miner.After 10-60 min of the starting mine I get following error .I have tried win7-8.1 with various AMD drivers such as 15.12 and 16 series even several risers but this error still remains.Core clock and voltage are default values moreover I have created reboot.bat file but after auto restarting of miner, GPU 1 won't work and it gives me 0 hash but GPU 0 still works properly.
I have 2 ASUS r9390x dc2 on each mainboard and all of mainboards have this error.Moreover, I set the virtual memory 20GB (I have 4gb physical memory) even tried GPU downclock but got that error each time!!
Please fix this bug in next version or give me a solution.

error:
ZEC - Total Speed: 577.981 H/s, Total Shares: 11, Rejected: 0, Time: 00:04
ZEC: GPU0 290.528 H/s, GPU1 287.453 H/s

watchdog - thread 0, hb time 47
watchdog - thread 1, hb time 93
watchdog - thread 2, hb time 15
watchdog - thread 3, hb time 78
watchdog - thread 4, hb time 68172
WATCHDOG: GPU 1 hangs in OpenCL call, exit
watchdog - thread 5, hb time 68125
WATCHDOG: GPU 1 hangs in OpenCL call, exit
watchdog - thread 6, hb time 68094
WATCHDOG: GPU 1 hangs in OpenCL call, exit
watchdog - thread 7, hb time 68157
WATCHDOG: GPU 1 hangs in OpenCL call, exit
Rebooting

ZEC: GPU0 288.255 H/s, GPU1 0.000 H/s

[jonid]

Zecminer64.exe = virus?

Kaspersky said...

Any ideas?

It's a 300 page forum; of course it's not a virus.

My Nod32 said it was OK.

[oldisoft]

Zecminer64.exe = virus?

Kaspersky said...

Any ideas?

My Kaspersky is not detecting it as a virus. Try uploading the file to https://www.virustotal.com/

Where did you download it from? The official links are at the start of the page.

Well from official page and probably this is positive false for kaspersky internet security 2016

Cheers

[elzium]

Hello
I have an issue around claymore zcash miner.After 10-60 min of the starting mine I get following error .I have tried win7-8.1 with various AMD drivers such as 15.12 and 16 series even several risers but this error still remains.Core clock and voltage are default values moreover I have created reboot.bat file but after auto restarting of miner, GPU 0 won't work (I have 2 ASUS r9390x dc2 on each mainboard and all of mainboards have this error) .Please fix this bug in next version or give me a solution.

error:
WATCHDOG: GPU 0 hangs in OpenCL call, exit
08:32:42:037 1adc watchdog - thread 1, hb time 76254
08:32:42:037 1adc WATCHDOG: GPU 0 hangs in OpenCL call, exit
08:32:43:100 1adc Restarting OK, exit..."

I have even better idea, why dont he come to ur home and fix ur computers for u?
Have u tried different psu-s, lowered voltages and clocks, cards straight in mb sockets, ...? 390x is not just throw into any conf and profit.

[oldisoft]

Do I have to put this:

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100


If I have just 1 GPU?

Apromaxivative H/s for Asus RX390 x ?

[Assaro]

Hello
I have an issue around claymore zcash miner.After 10-60 min of the starting mine I get following error .I have tried win7-8.1 with various AMD drivers such as 15.12 and 16 series even several risers but this error still remains.Core clock and voltage are default values moreover I have created reboot.bat file but after auto restarting of miner, GPU 0 won't work and it gives me 0 hash but GPU 1 still works properly.
I have 2 ASUS r9390x dc2 on each mainboard and all of mainboards have this error.
Please fix this bug in next version or give me a solution.

error:
WATCHDOG: GPU 0 hangs in OpenCL call, exit
08:32:42:037 1adc watchdog - thread 1, hb time 76254
08:32:42:037 1adc WATCHDOG: GPU 0 hangs in OpenCL call, exit
08:32:43:100 1adc Restarting OK, exit..."

check if your minimum virtual memmory is set to 16 gb (16000)

you monitor is pluged in or not? If the virtual memmory is set properly, then try another intensity (-i 4, -i 3,-i 2 ect)...

[Rusguy]

On my 290 memory controller load is rarely over 60%. Big difference is that beside 290 memory bus being 2x wider, memory runs at 1250 MHz vs 2000 MHz on your 480. This means that you can do all possible tricks but no way can use that tight timings as on 290 at 1250 MHz or 390 at 1500 MHz. OK suppose that you reduce mem clock on 480 to 1500 or 1250 MHz to get the same timings but then you still do not get the speed that is possible with 2x wider bus.

This is not question of memory througput.
Reducing memclock almost twice affects only to 20% hashrate drop.
https://ip.bitcointalk.org/?u=http%3A%2F%2Fi.piccy.info%2Fi9%2Fce2e18589c91c75caab3b10a46a2c9f2%2F1480097808%2F34039%2F1051816%2Fmemdrop.png&t=571&c=zWfZWhuCJrGaPQ

While my initial analysis was focused on the external GDDR5 bandwidth limits, current ZEC GPU mining software seems to be limited by the memory controller/core bus.  On AMD GCN, each memory controller can xfer 64 bytes (1 cache line) per clock.  In SA5, the ht_store function, in addition to adding to row counters, does 4 separate memory writes for most rounds (3 writes for the last couple rounds).  All of these writes are either 4 or 8 bytes, so much less than 64 bytes per clock are being transferred to the L2 cache.  A single thread (1 SIMD element) can transfer at most 16 bytes (dwordX4) in a single instruction.  This means a modified ht_store thread could update a row slot in 2 clocks.  If the update operation is split between 2 (or 4 or more) threads, one slot can be updated in one clock, since 2 threads can simultaneously write to different parts of the same 64-byte block.  This would mean each row update operation could be done in 2 GPU core clock cycles; one for the counter update, and one for updating the row slot.

Even with those changes, my calculations indicate that a ZEC miner would be limited by the core clock, according to a ratio of approximately 5:6.  In other words, when a Rx 470 has a memory clock of 1750Mhz, the core would need to be clocked at 1750 * 5/6 = 1458Mhz in order to achieve maximum performance.

If the row counters can be kept in LDS or GDS, the core:memory ratio required would be 1:2, thereby allowing full use of the external memory bandwidth.  There is 64KB of LDS per CU, and the AMD GCN architecture docs indicate the LDS can be globally addressed; i.e. one CU can access the LDS of another CU.  However the syntax of OpenCL does not permit the local memory of one work-group to be accessed by a different work-group.  There is only 64KB of GDS shared by all CUs, and even if the row counters could be stored in such a small amount of memory, OpenCL does not have any concept of GDS.

This likely means writing a top performance ZEC miner for AMD is the domain of someone who codes in GCN assembler.  Canis lupus?

Core speed has more of an effect on 480s but they are still limited by memory bandwidth.

I'm very funny that you even still protect 290,390 here is about the memory of 4xx

According to AMD According to a CU efficiency increased by 15% compared to the Radeon R9 290. When processing tessellation in conjunction with heavy duty AA efficiency gains can be double or even triple. Supported data compression, thus improving memory bandwidth. In particular, supported by Delta Color compression algorithm that allows you to encode the color difference. On this technique we described in the description of the architecture NVIDIA Pascal. AMD has such compression is maintained including the Radeon Fury X, but the effectiveness of the algorithms at Polaris 10 above. With this increase in the efficiency of a data chip content bus word length of 256 bits. The Radeon RX 480 uses GDDR5 memory chips with an effective rate of communication 8 GHz.


And for that AMD has introduced new regulations of memory !!! such as FP16 and 16 Int.

Which I think Claymore's does not use, for this reason, the new data on the time of top 480 does not operate at full capacity. And at the same time using the old manual of memory with which he revived the old 7xxx to work at such speeds



And compared to the 7xxx, 290 and 390 may be given even greater speed, including 480 if you use the new instructions of memory that only support new models 290-390-480, though only suffer 7xxx model that greatly impact on mining in overall, since the data pattern immediately lose their significance in mining


http://i11.pixs.ru/storage/1/6/0/03amdradeo_6383058_24215160.png

[vel12]

Do I have to put this:

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100


If I have just 1 GPU?

Apromaxivative H/s for Asus RX390 x ?

Only 2Gb GPU Memory

[rampaige]

Hello
I have an issue around claymore zcash miner.After 10-60 min of the starting mine I get following error .I have tried win7-8.1 with various AMD drivers such as 15.12 and 16 series even several risers but this error still remains.Core clock and voltage are default values moreover I have created reboot.bat file but after auto restarting of miner, GPU 0 won't work and it gives me 0 hash but GPU 1 still works properly.
I have 2 ASUS r9390x dc2 on each mainboard and all of mainboards have this error.
Please fix this bug in next version or give me a solution.

error:
WATCHDOG: GPU 0 hangs in OpenCL call, exit
08:32:42:037 1adc watchdog - thread 1, hb time 76254
08:32:42:037 1adc WATCHDOG: GPU 0 hangs in OpenCL call, exit
08:32:43:100 1adc Restarting OK, exit..."

check if your minimum virtual memmory is set to 16 gb (16000)

you monitor is pluged in or not? If the virtual memmory is set properly, then try another intensity (-i 4, -i 3,-i 2 ect)...

appreicate for answering.
Yes my monitors are pluged but turn them off immediately after mining start

[BenCodie]

Please share your speeds of  
R9 280X (R7970) 3GB 384 BIT GDDR5
AMD Sapphire R9 280X VaporX Edition
XFX Double Dissipation R9 290 4GB 512 Bits OC

Thanks

[jonid]

Waiting Claymore's post saying:

"I will upload the new version in an hour"

 

[AltcoinScamfinder]

Please share your speeds of  
R9 280X (R7970) 3GB 384 BIT GDDR5
AMD Sapphire R9 280X VaporX Edition
XFX Double Dissipation R9 290 4GB 512 Bits OC

Thanks

R9 290 4GB 230 H/s
All stock

[BenCodie]

Please share your speeds of  
R9 280X (R7970) 3GB 384 BIT GDDR5
AMD Sapphire R9 280X VaporX Edition
XFX Double Dissipation R9 290 4GB 512 Bits OC

Thanks

R9 290 4GB 230 H/s
All stock

Are all XFX Double Dissipation cards?
How about
R9 280X (R7970) 3GB 384 BIT GDDR5
AMD Sapphire R9 280X VaporX Edition
if some have
Thanks again

[Taxidermista]

How do u enable remote management? -mport 3333 dont seem to work?

Fixed issue with "-mport" option (read-only mode). Please re-download v8.0.

I've re-downloaded v8 from Mega and still can't restart a miner with -mport 3333.

[MrJaekin]

Please share your speeds of  
R9 280X (R7970) 3GB 384 BIT GDDR5
AMD Sapphire R9 280X VaporX Edition
XFX Double Dissipation R9 290 4GB 512 Bits OC

Thanks

R9 290 4GB 230 H/s
All stock

Try 1100 Core and 1125 Mem..  My ref cards do 250-255

[Qartada]

Please share your speeds of  
R9 280X (R7970) 3GB 384 BIT GDDR5
AMD Sapphire R9 280X VaporX Edition
XFX Double Dissipation R9 290 4GB 512 Bits OC

Thanks

R9 290 4GB 230 H/s
All stock

Try 1100 Core and 1125 Mem..  My ref cards do 250-255

Have you raised the memory frequency to 1250? Does it make any difference? I heard the Equihash is memory sensitive.

[auctioneeeeer]

Claymore, do you have an estimate on what day you are targeting for next release?