Bitcoin Forum
December 03, 2016, 11:34:05 AM *
News: To be able to use the next phase of the beta forum software, please ensure that your email address is correct/functional.
 
   Home   Help Search Donate Login Register  
Pages: « 1 [2]  All
  Print  
Author Topic: RaspberryPi litecoin CPU and GPU miner bounty  (Read 17440 times)
pooler
Hero Member
*****
Online Online

Activity: 644


View Profile
May 18, 2012, 09:04:42 PM
 #21

Maybe this with a A10 single-core 1.5GHz ARM CPU and a Mali 400 GPU would hash better plus it's only $74 again probably using only a few watts. http://arstechnica.com/gadgets/2012/05/new-74-android-mini-computer-is-slightly-larger-than-a-thumb-drive/

The CPU certainly would, being a Cortex-A8. The current code should do over 1 khash/s on it, and that's without NEON optimizations.

BTC: 15MRTcUweNVJbhTyH5rq9aeSdyigFrskqE · LTC: LTCPooLqTK1SANSNeTR63GbGwabTKEkuS7
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
cwerdna
Jr. Member
*
Offline Offline

Activity: 36


View Profile
August 23, 2012, 09:53:54 AM
 #22

Pi's are now generally available. Plus I want to thrash the fuck out of my iPhone before the rumored release of the iPhone 5 (and the expiry of my warranty)

Is development still alive? Still require funding?
pooler
Hero Member
*****
Online Online

Activity: 644


View Profile
August 23, 2012, 12:15:34 PM
 #23

Pi's are now generally available. Plus I want to thrash the fuck out of my iPhone before the rumored release of the iPhone 5 (and the expiry of my warranty)

Is development still alive? Still require funding?

The ARMv6 implementation of scrypt in cpuminer 2.2.3 is to be considered mature and stable. It can do 320 hashes/s on a Raspberry Pi, and 190 hashes/s on an iPhone 3G.
While I mainly did this for the fun of it, I'll be happy to take a fraction of the bounty if nobody has any objections.

Regarding the GPU, let me quote a thread from the Raspberry Pi forum.
Quote
GLSL ES (the stripped down version of the OpenGL Shader Language) does not have proper support for integers. See paragraph 4.1.3 in the GLSL ES specification. Integers are only supported as a programming aid (in loops, for instance). They have very loosely defined semantics and precision, and many typical integer operations are not supported. Most OpenGL ES implementations simply map int to float.

Applications that rely on integers simply won't work on the GPU. Good examples for that are bitcoin mining, cryptography in general and compression.
In case you are wondering, this also applies to scrypt, which is based on integer arithmetics.

BTC: 15MRTcUweNVJbhTyH5rq9aeSdyigFrskqE · LTC: LTCPooLqTK1SANSNeTR63GbGwabTKEkuS7
TeslaUa
Full Member
***
Offline Offline

Activity: 168



View Profile WWW
October 24, 2012, 01:41:09 PM
 #24

With today's news may the bounty get back on track?
muqali
Full Member
***
Offline Offline

Activity: 182


View Profile
October 24, 2012, 02:28:53 PM
 #25

The first SoC I think thay may be capable of real GPU mining might be the Tegra 4. iirc it will have a more programmable GPU.

donations BTC: 1CaCwo4xneTqTLEdomW76Cg5NteZyvXi1c
donations LTC: LTcasvjtLuN92ks1Pc1qtkvE9PswsXEbev
Pages: « 1 [2]  All
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!