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Preparation for 1.4 release.

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git-svn-id: file:///home/svnrepos/software/liblbfgs/trunk@4 ecf4c44f-38d1-4fa4-9757-a0b4dd0349fc
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naoaki
2008-04-25 07:54:10 +00:00
parent 8bad5e136a
commit 59d3e21ef6
6 changed files with 67 additions and 44 deletions
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39
include/lbfgs.h
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@@ -33,9 +33,6 @@
extern "C" {
#endif/*__cplusplus*/
#define USE_SSE 1
#define __SSE2__ 1
/*
* The default precision of floating point values is 64bit (double).
*/
@@ -57,7 +54,7 @@ typedef float lbfgsfloatval_t;
typedef double lbfgsfloatval_t;
#else
#error "liblbfgs supports single (float; LBFGS_FLOAT = 32) or double (double; LBFGS_FLOAT=64) precision only."
#error "libLBFGS supports single (float; LBFGS_FLOAT = 32) or double (double; LBFGS_FLOAT=64) precision only."
#endif
@@ -341,9 +338,11 @@ In this formula, ||.|| denotes the Euclidean norm.
* @param n The number of variables.
* @param x The array of variables. A client program can set
* default values for the optimization and receive the
* optimization result through this array. The memory
* block of this array must be aligned to 16 for liblbfgs
* built with SSE/SSE2 optimization routine enabled.
* optimization result through this array. This array
* must be allocated by ::lbfgs_malloc function
* for libLBFGS built with SSE/SSE2 optimization routine
* enabled. The library built without SSE/SSE2
* optimization does not have such a requirement.
* @param ptr_fx The pointer to the variable that receives the final
* value of the objective function for the variables.
* This argument can be set to \c NULL if the final
@@ -393,10 +392,11 @@ void lbfgs_parameter_init(lbfgs_parameter_t *param);
/**
* Allocate an array for variables.
*
* Use this function to allocate a variable array for liblbfgs built with
* or without SSE/SSE2 optimization routine enabled. When SSE/SSE2 routine in
* liblbfgs is disabled, it is unnecessary to use this function; liblbfgs
* accepts a variable array allocated by any
* This function allocates an array of variables for the convenience of
* ::lbfgs function; the function has a requreiemt for a variable array
* when libLBFGS is built with SSE/SSE2 optimization routines. A user does
* not have to use this function for libLBFGS built without SSE/SSE2
* optimization.
*
* @param n The number of variables.
*/
@@ -483,7 +483,7 @@ This library is used by:
@section download Download
- <a href="http://www.chokkan.org/software/dist/liblbfgs-1.3.tar.gz">Source code</a>
- <a href="http://www.chokkan.org/software/dist/libLBFGS-1.4.tar.gz">Source code</a>
libLBFGS is distributed under the term of the
<a href="http://opensource.org/licenses/mit-license.php">MIT license</a>.
@@ -494,11 +494,16 @@ libLBFGS is distributed under the term of the
::lbfgs_parameter_t::linesearch was added to choose either MoreThuente
method (::LBFGS_LINESEARCH_MORETHUENTE) or backtracking algorithm
(::LBFGS_LINESEARCH_BACKTRACKING).
- Fixed a serious bug: the previous version did not compute
psuedo-gradients properly in the line search routine. This bug might
quit an iteration process too early when the orthant-wise L-BFGS routine
was activated (0 < ::lbfgs_parameter_t::orthantwise_c).
- Added configure script.
- Fixed a bug: the previous version did not compute psuedo-gradients
properly in the line search routines for OW-LQN. This bug might quit
an iteration process too early when the OW-LQN routine was activated
(0 < ::lbfgs_parameter_t::orthantwise_c).
- Configure script for POSIX environments.
- SSE/SSE2 optimizations with GCC.
- New functions ::lbfgs_malloc and ::lbfgs_free to use SSE/SSE2 routines
transparently. It is uncessary to use these functions for libLBFGS built
without SSE/SSE2 routines; you can still use any memory allocators if
SSE/SSE2 routines are disabled in libLBFGS.
- Version 1.3 (2007-12-16):
- An API change. An argument was added to lbfgs() function to receive the
final value of the objective function. This argument can be set to