From nzhou@acm.org Thu Sep 21 22:02:43 2006
From: nzhou@acm.org (Neng-Fa Zhou)
Date: Thu, 21 Sep 2006 17:02:43 -0400
Subject: [bp-users]B-Prolog version 6.9 released
Message-ID: <08ed01c6ddc1$48279ca0$6501a8c0@toshibauser>
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Hello,
I am pleased to announce that B-Prolog version 6.9 has been released and is now available for download from www.probp.com.
B-Prolog is an efficient implementation of Prolog with extensions including CLP(FD), tabling, and action rules. Version 6.9 incorporates the following improvements:
1. A new memory manager is added, which allows automatic expansions of the stacks (control, heap, and trail) and the areas (program and table). This new memory manager, together with the garbage collectors, significantly enhance the scalability of the B-Prolog system. For example, the PRISM system built on B-Prolog is able to mine extremely large volumes of data and constraint programs are able to handle networks of millions of constraints.
2. New propagators are used for non-linear constraints involving functions such as abs, mod, *, and // (integer division). New global constraints and labeling built-ins are added. The built-in 'time_out' allows imposing a time limit on a query and the built-in 'labeling_mix' allows use of mixed strategies in the labeling of variables.
3. The action rule language is extended to support conjunctive and disjunctive channels. Timers work on both Windows and Linux versions. Attributed variables and global heap variables are added. The K.U. Leuven CHR compiler runs with B-prolog now.
4. ISO built-ins are made almost 100% ISO compliant except for unsupported functions such as character conversion and repositionable streams. This change requires modification of certain programs, especially programs with the escape character '\' in atoms or strings.
5. Improvements are made such that large clauses with tens of thousands of subgoals in the bodies can be read, compiled, and asserted.
There are numerous other improvements. Please see www.probp.com/updates.htm for more details.
Sincerely,
Neng-Fa Zhou
--Boundary_(ID_1KFK3c5Dk93Vo4t47uozjQ)
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Content-transfer-encoding: 7BIT
Hello,
I am pleased to announce that B-Prolog version 6.9
has been released and is now available for download from www.probp.com.
B-Prolog is an efficient implementation of Prolog
with extensions including CLP(FD), tabling, and action rules. Version 6.9
incorporates the following improvements:
1. A new memory manager is added, which allows
automatic expansions of the stacks (control, heap, and trail) and the areas
(program and table). This new memory manager, together with the garbage
collectors, significantly enhance the scalability of the B-Prolog system. For
example, the PRISM system built on B-Prolog is able to mine extremely large
volumes of data and constraint programs are able to handle networks of millions
of constraints.
2. New propagators are used for non-linear
constraints involving functions such as abs, mod, *, and // (integer division).
New global constraints and labeling built-ins are added. The built-in 'time_out'
allows imposing a time limit on a query and the built-in 'labeling_mix' allows
use of mixed strategies in the labeling of variables.
3. The action rule language is extended to support
conjunctive and disjunctive channels. Timers work on both Windows and Linux
versions. Attributed variables and global heap variables are added. The K.U.
Leuven CHR compiler runs with B-prolog now.
4. ISO built-ins are made almost 100% ISO compliant
except for unsupported functions such as character conversion and repositionable
streams. This change requires modification of certain programs, especially
programs with the escape character '\' in atoms or strings.
5. Improvements are made such that large clauses
with tens of thousands of subgoals in the bodies can be read, compiled, and
asserted.
Sincerely,
Neng-Fa Zhou
--Boundary_(ID_1KFK3c5Dk93Vo4t47uozjQ)--