cpuminer - Cell BE optimized miner for litecoin http://yyz.us/bitcoin/

Age	Commit message (Collapse)	Author
2012-02-21	Initial partial conversion to SPU assembly	Siarhei Siamashka
	Only the first loop is converted. The performance is increased up to ~5.97 khash/sec per SPE core. TODO: try to update it to use better data layout and more unrolling from shakti's variant.
2012-01-01	Fix strict aliasing problems	Siarhei Siamashka
	Currently the cast between uint32_t and uint64_t pointers breaks strict aliasing rules and needs -fno-strict-aliasing option as a workaround, otherwise the code gets miscompiled. But -fno-strict-aliasing can seriously inhibit optimization possibilities. For example, performance of 1 thread on Cell PPU (using Altivec instructions): CFLAGS="-O3 -mcpu=cell -fno-strict-aliasing" - 1.79 khash/sec CFLAGS="-O3 -mcpu=cell -fstrict-aliasing" - 2.60 khash/sec
2011-12-29	Added Cell/BE optimizations	Siarhei Siamashka
	Linux on PS3 gets a huge boost in litecoin mining performance. Cell/BE support should be detected and enabled automatically by autotools. The miner threads are first allocated to the available SPU cores (typically 6). The remaining threads are allocated on PPU. There will be 8 threads total on PS3: 6 SPU threads and 2 PPU threads. Each SPU core provides ~5.4 khash/s if compiled with spu-elf-gcc 4.6 The performance may vary for different gcc versions, older ones are typically slower.
2011-12-29	Use gcc vector extensions for SIMD scrypt key derivation function	Siarhei Siamashka
	The code can be compiled for different architectures from the same source starting with gcc 4.7. But SSE2/Altivec/SPU targets have compatibility wrappers, which also allow the use of older versions of gcc. Two hashes are processed at the same time, so twice bigger scratch buffer is needed (~256K vs. ~128K). Speedup on Cell PPU (32-bit), single thread, 3.2GHz: ~0.58 khash/s -> ~1.79 khash/sec
2011-12-29	SHA256 code moved to a separate header file	Siarhei Siamashka

2011-10-01	Rip out sha256 algos	Art Forz

2011-09-20	add scrypt function	Art Forz

2011-06-08	Fix libcurl include path	Christian Ludwig
	Fix the include path for libcurl, if it was installed in a location where gcc does not look by default. The variable is declared in the LIBCURL_CHECK_CONFIG m4 macro.
2011-04-11	Proper platform detection.	fleger
	Use target instead of host. Fix compilation for non win32 and non x86_64 platforms.
2011-03-14	Fix Windows build, that broke with yasm integration	Jeff Garzik

2011-03-14	Move all RPC I/O to separate thread.	Jeff Garzik

2011-03-14	Makefile.am: neaten minerd sources list	Jeff Garzik

2011-03-06	X86_64 SSE2 support for Linux	Mark Crichton

2011-02-13	Add support for JSON-format configuration file	Jeff Garzik

2010-11-28	Add Crypto++ sha256 implementation (C only, ASM elided for now)	Jeff Garzik

2010-11-27	Move sha256_generic into its own .o build output. Const-ify midstate param.	Jeff Garzik

2010-11-27	Add experimental (read: probably broken) VIA padlock support.	Jeff Garzik

2010-11-26	Add tcatm's 4way SSE2 sha256 implementation.	Jeff Garzik

2010-11-26	Build on Windows using mingw32.	Jeff Garzik

2010-11-26	Build jansson 1.3 in-tree, if not present on system.	Jeff Garzik

2010-11-26	Makefile.am: add compat.h, to correct 'make distcheck' failures	Jeff Garzik

2010-11-26	Link with pthreads lib, if present. Remove GNU-specific asprintf usage.	Jeff Garzik

2010-11-25	Move utility routines to util.c.	Jeff Garzik

2010-11-25	Allocate work struct once, on stack, rather than alloc+free for each getwork.	Jeff Garzik

2010-11-25	Remove unused OpenSSL dependency.	Jeff Garzik
	Also, turn a few strings into #define'd constants.
2010-11-24	Do not build sha256_generic module separate from cpu-miner.c. Version 0.1.1.v0.1.1	Jeff Garzik

2010-11-24	Convert over to autotools. Release version 0.1.v0.1	Jeff Garzik