Implementation of depth-first branch-and-bound search engine. More...
#include <bab.hh>
Public Member Functions | |
BAB (Space *s, size_t sz, const Options &o) | |
Initialize with space s (of size sz) and search options o. More... | |
Space * | next (void) |
Search for next better solution More... | |
Statistics | statistics (void) const |
Return statistics. More... | |
void | reset (Space *s) |
Reset engine to restart at space s. More... | |
~BAB (void) | |
Destructor. More... | |
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Worker (size_t sz) | |
Initialize with space size sz. More... | |
void | start (void) |
Reset stop information. More... | |
bool | stop (const Options &o, size_t sz) |
Check whether engine must be stopped (with additional stackspace sz) More... | |
bool | stopped (void) const |
Check whether engine has been stopped. More... | |
void | push (const Space *s, const Choice *c) |
New space s and choice c get pushed on stack. More... | |
void | constrained (const Space *s1, const Space *s2) |
Space s1 is replaced by space s2 due to constraining. More... | |
void | adapt (const Space *s) |
New space s is added for adaptive recomputation. More... | |
void | pop (const Space *s, const Choice *c) |
Space s and choice c get popped from stack. More... | |
void | lao (const Space *s) |
Space s gets used for LAO (removed from stack) More... | |
void | current (const Space *s) |
Space s becomes current space (s = NULL: current space deleted) More... | |
void | reset (const Space *s, unsigned long int d=0) |
Reset statistics for space s with root depth d. More... | |
void | reset (void) |
Reset statistics for failed space. More... | |
void | stack_depth (unsigned long int d) |
Record stack depth d. More... | |
unsigned long int | steal_depth (unsigned long int d) const |
Return steal depth. More... | |
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Statistics (void) | |
Initialize. More... | |
void | reset (void) |
Reset. More... | |
Statistics | operator+ (const Statistics &s) |
Return sum with s. More... | |
Statistics & | operator+= (const Statistics &s) |
Increment by statistics s. More... | |
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StatusStatistics (void) | |
Initialize. More... | |
void | reset (void) |
Reset information. More... | |
StatusStatistics | operator+ (const StatusStatistics &s) |
Return sum with s. More... | |
StatusStatistics & | operator+= (const StatusStatistics &s) |
Increment by statistics s. More... | |
Additional Inherited Members | |
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unsigned long int | fail |
Number of failed nodes in search tree. More... | |
unsigned long int | node |
Number of nodes expanded. More... | |
unsigned long int | depth |
Maximum depth of search stack. More... | |
size_t | memory |
Peak memory allocated. More... | |
unsigned long int | restart |
Number of restarts. More... | |
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bool | _stopped |
Whether engine has been stopped. More... | |
size_t | mem_space |
Memory required for a single space. More... | |
size_t | mem_cur |
Memory for the current space (including memory for caching) More... | |
size_t | mem_total |
Current total memory. More... | |
unsigned long int | root_depth |
Depth of root node (for work stealing) More... | |
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