Topic: [ANN][GRS][DMD][DGB] Pallas optimized groestl opencl kernels - page 10. (Read 61229 times)

Trust me 14.7RC3 is best.
Then u are unlucky enough to have a "Locked" card.
Only recourse for u is vbios modding your card if u want to lower memclock to 150 and be able to do higher overclock on gpu.
Do the research on vbios modding ... there are pointers in this thread by myself, I hate repeating my self a hundred times that's why the info is in thread.
https://bitcointalksearch.org/topic/m.9043545

BTW I can still clock mem at 1625 via sgminer setting when I mine X11 or Neoscrypt with it ... just have to set it manual for them ...

Welcome to Extreme Diamond Mining LOL

thread readed. tryed 14.4 14.6 14.7 14.9
can't put the cards at lower memlock than the stock 1550 maybe really locked!

Why can't ppl read the thread ... u will have best performance with driver 14.7RC3 ...

Many 280x are locked to small range of adjustment on clocks (PowerColor 280x being one of them, that's why I had to low-level vbios mod mine.  Also many 280x will throttle gpu-clock at temps above 72C)

hmm now I see miner still showing the stock memlock 1550 for 280x vapor. why its not changed? driver 14.4
I changed it from the batch file also from the miner later.

lower mem clock = less power usage and bigger core overclock potential.

I will stay at core 1070(dont like to overclock) but will set mem at 150 to see the result.

edit. hm again 23.4 but lower temps. thats fine enough I think.

also afterburner but 14.4 driver for me

I'm all for sticking with asm route ... u need to feed your ocl tweaks to realhet and lets maximize asm kernel.
As I already suggested to realhet "cross-compile" to generate bins for all arch we support is possible, he needs our bins created on each arch to dig out minor diffs between bins.

Well the best i can run at without crashing is at 1040 core / 1250 memory as it wont go lower with a -0.055 core volt drop

1 card the rig pulls 510W at 28.5MH/s so 0.056MH per watt
2 cards the rig pulls 740W at 57MH/s so 0.077MH per watt
3 cards the rig pull 990W at 85.5MH/s so 0.086MH per watt

which is about 230 - 250W per card with 0.114MH per watt excluding the system use

if anybody can get a higher hash per watt then let me know

EDIT

Even at that rate with my electricity costs i cant make a profit...

Not to be condescending but have u tried on sgminer command line
--gpu-clock 1100 --mem-clock 150

Wow I got Best share: 702K
Was it a block? :-D

Now let's get serious: I finally have a little time to write some considerations on the ocl and asm kernels.
I believe we should pursue the asm path for a number or reasons:

- currently the OCL kernel is a little faster on hawaii but not on all other cards and I don't think it can be improved in this respect
- the OCL kernel has been tweaked and optimized for months, while the asm one is new so there is probably much more room for improvement
- just by applying the first and last round optimization the asm kernel will probably be faster on hawaii as well; I'm sure that Realhet will find other asm tricks to apply
- with all these catalyst version problems, the best way to share kernels for the people to mine is by bin files, making the asm version and ocl equivalent (for distribution purposes); better yet would be a miner with all the bundled bin files (takes time)
- asm is cooler than ocl ;-)

what do you guys think?

Not sure if you can do this to a 290/290x card because vbios likely to be quite different.  You will have to do some research before you attempt my method usiing VBE7.0.0.7b.exe it is a video bios editor u can use to change voltages, clocks at board level.  If I remember correctly it was only for Tahiti cards ... do your research, then u flash vbios with atiwinflash.  There may be programs like msi afterburner but I did my card at low level Again check  out if it will work on your card before you do it or u can "brick" your card haha

Can I ask what software you are using to change the values as I'm using msi after burner 4.1 but it wont change the memory clock and the core clock is always lower than what I set?

These changes are really pushing my cards now as they normally sat at 50'C but are now over 60'C (They are watercooled). I will put up power usage when i next reboot and plug the power meter in.

I am at stock core 1070 and mem 1100. this is the difference maybe.

Yer not gonna get 30-33MHs right out of the box on 290/290x, you will have to tune intensity, gpu clock, mem clock (lowest possible).  Pallas can help with these cards if he's in right mood.
On 280x (1180/150) I was able to use my tuning from previous kernel to get 26.0MHs only because it was already maxed out Volt modded, vbios modded etc.  Info about these techniques is in the thread if you look about ...
As far as miner ... sgminer 4.1.0 (sph) is what I use ...

same here. 23.4
witch is the right miner?

30 Mh/s is for the r9 290, 290x does 33.

ROFL u just had to try 14.12 hahahaha ... now back to 14.7RC3 LOL

Well that neoscrypt is quiet complicated. I can't even got it compiled as I think it needs more defines than just WORKSIZE alone. Some day I gonna chack it from a closer view as it is interesting...

Now I have Cat 14.12 omega (whatever it is) now. Asm kernel is unchanged, original Ocl kernel is 15% faster than cat 14.9 but it is still way too bad.

I've compared your diamondTahiti compilation with my Capeverde one. The differences are not that complicated:
- In the ELF's header the 'archtype' field is 3FF vs. 3FD
- In the small binary info section (outer elf)   2x bytes are different: 9F vs. 9C
- In the small binary info section (inner elf)   one byte difference: 1C vs. 1A
- In the text ARG section the only difference is the strings: capeverde vs. tahiti

So if I collect all these constants/strings I can convert from one to another. But Capeverde and Tahiti are identical chips. It's possible that the binary of Hawaii is much more different.
And yet the two binary (capeverde and tahiti) are almost the same, the clBuildKernel() checks for hardware ids and refuses to load it.

Look better   Dev 0 is 280x Dev 1 is 7950

List of opencl devices:
Device #0
Target: Tahiti  Series: 7  Core:1150 MHz  CU:32  RAM:3072 MB  UID:4098
ext: cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_atomic_counters_32 cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_dx9_media_sharing cl_khr_image2d_from_buffer cl_khr_spir cl_khr_gl_event
Device #1
Target: Tahiti  Series: 7  Core:1150 MHz  CU:28  RAM:3072 MB  UID:4098
ext: cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_atomic_counters_32 cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_dx9_media_sharing cl_khr_image2d_from_buffer cl_khr_spir cl_khr_gl_event

Using device:
Target: Tahiti  Series: 7  Core:1150 MHz  CU:32  RAM:3072 MB  UID:4098
ext: cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_atomic_counters_32 cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_dx9_media_sharing cl_khr_image2d_from_buffer cl_khr_spir cl_khr_gl_event
* core MHz value is not always accurate, use Catalyst Control Center (or ADL) instead!

Using new GCN ASM code
Kernel binary saved: C:\Miners\HetPas150111_Groestl\groestl\kernel_dump\kernel.elf

elapsed: 53.609 ms  24.449 MH/s   gain:  12.22x
elapsed: 50.710 ms  25.847 MH/s   gain:  12.92x
elapsed: 50.670 ms  25.868 MH/s   gain:  12.93x
elapsed: 50.707 ms  25.849 MH/s   gain:  12.92x

Functional test: RESULT IS OK

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