Base class to implement the predictor tables. More...
#include <multiperspective_perceptron.hh>
Public Member Functions | |
| HistorySpec (int _p1, int _p2, int _p3, double _coeff, int _size, int _width, MultiperspectivePerceptron &_mpp) | |
| virtual unsigned int | getHash (ThreadID tid, Addr pc, Addr pc2, int t) const =0 |
| Gets the hash to index the table, using the pc of the branch, and the index of the table. More... | |
| virtual void | setBitRequirements () const |
| Sets the size requirements of the table, used when initializing to set the proper size of the tables. More... | |
Public Attributes | |
| const int | p1 |
| First parameter. More... | |
| const int | p2 |
| Second parameter. More... | |
| const int | p3 |
| Third parameter. More... | |
| const double | coeff |
| Coefficient of the feature, models the accuracy of the feature. More... | |
| const int | size |
| Pre-assigned size in bits assigned to this feature. More... | |
| const int | width |
| Width of the table in bits More... | |
| MultiperspectivePerceptron & | mpp |
| Reference to the branch predictor class. More... | |
Detailed Description
Base class to implement the predictor tables.
Definition at line 225 of file multiperspective_perceptron.hh.
Constructor & Destructor Documentation
◆ HistorySpec()
|
inline |
Definition at line 242 of file multiperspective_perceptron.hh.
Member Function Documentation
◆ getHash()
|
pure virtual |
Gets the hash to index the table, using the pc of the branch, and the index of the table.
- Parameters
-
tid Thread ID of the branch pc address of the branch pc2 address of the branch shifted 2 bits to the right t integer index of the table
- Returns
- resulting hash value that will be used to index the table
Implemented in gem5::branch_prediction::MultiperspectivePerceptron::SGHISTPATH, gem5::branch_prediction::MultiperspectivePerceptron::RECENCYPOS, gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH, gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH, gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH, gem5::branch_prediction::MultiperspectivePerceptron::MODPATH, gem5::branch_prediction::MultiperspectivePerceptron::LOCAL, gem5::branch_prediction::MultiperspectivePerceptron::PATH, gem5::branch_prediction::MultiperspectivePerceptron::IMLI, gem5::branch_prediction::MultiperspectivePerceptron::RECENCY, gem5::branch_prediction::MultiperspectivePerceptron::BIAS, gem5::branch_prediction::MultiperspectivePerceptron::MODHIST, gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC, and gem5::branch_prediction::MultiperspectivePerceptron::GHIST.
Referenced by gem5::branch_prediction::MultiperspectivePerceptron::getIndex(), and gem5::branch_prediction::MultiperspectivePerceptronTAGE::getIndex().
◆ setBitRequirements()
|
inlinevirtual |
Sets the size requirements of the table, used when initializing to set the proper size of the tables.
Reimplemented in gem5::branch_prediction::MultiperspectivePerceptron::RECENCYPOS, gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH, gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH, gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH, gem5::branch_prediction::MultiperspectivePerceptron::MODPATH, gem5::branch_prediction::MultiperspectivePerceptron::LOCAL, gem5::branch_prediction::MultiperspectivePerceptron::PATH, gem5::branch_prediction::MultiperspectivePerceptron::IMLI, gem5::branch_prediction::MultiperspectivePerceptron::RECENCY, gem5::branch_prediction::MultiperspectivePerceptron::MODHIST, gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC, and gem5::branch_prediction::MultiperspectivePerceptron::GHIST.
Definition at line 263 of file multiperspective_perceptron.hh.
Member Data Documentation
◆ coeff
| const double gem5::branch_prediction::MultiperspectivePerceptron::HistorySpec::coeff |
Coefficient of the feature, models the accuracy of the feature.
Definition at line 234 of file multiperspective_perceptron.hh.
Referenced by gem5::branch_prediction::MultiperspectivePerceptron::computeOutput(), and gem5::branch_prediction::MultiperspectivePerceptron::train().
◆ mpp
| MultiperspectivePerceptron& gem5::branch_prediction::MultiperspectivePerceptron::HistorySpec::mpp |
Reference to the branch predictor class.
Definition at line 240 of file multiperspective_perceptron.hh.
Referenced by gem5::branch_prediction::MultiperspectivePerceptron::GHIST::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::MODHIST::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCY::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::IMLI::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::PATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::LOCAL::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::MODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCYPOS::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::SGHISTPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHIST::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::MODHIST::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCY::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::IMLI::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::PATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::LOCAL::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::MODPATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH::setBitRequirements(), and gem5::branch_prediction::MultiperspectivePerceptron::RECENCYPOS::setBitRequirements().
◆ p1
| const int gem5::branch_prediction::MultiperspectivePerceptron::HistorySpec::p1 |
First parameter.
Definition at line 228 of file multiperspective_perceptron.hh.
Referenced by gem5::branch_prediction::MultiperspectivePerceptron::GHIST::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::MODHIST::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCY::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::IMLI::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::PATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::LOCAL::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::MODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCYPOS::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::SGHISTPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::MODHIST::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCY::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::IMLI::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::PATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::MODPATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH::setBitRequirements(), and gem5::branch_prediction::MultiperspectivePerceptron::RECENCYPOS::setBitRequirements().
◆ p2
| const int gem5::branch_prediction::MultiperspectivePerceptron::HistorySpec::p2 |
Second parameter.
Definition at line 230 of file multiperspective_perceptron.hh.
Referenced by gem5::branch_prediction::MultiperspectivePerceptron::GHIST::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::MODHIST::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCY::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::PATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::MODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::SGHISTPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHIST::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::MODHIST::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::MODPATH::setBitRequirements(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH::setBitRequirements(), and gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH::setBitRequirements().
◆ p3
| const int gem5::branch_prediction::MultiperspectivePerceptron::HistorySpec::p3 |
Third parameter.
Definition at line 232 of file multiperspective_perceptron.hh.
Referenced by gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::RECENCY::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::PATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::MODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::GHISTMODPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::BLURRYPATH::getHash(), gem5::branch_prediction::MultiperspectivePerceptron::SGHISTPATH::getHash(), and gem5::branch_prediction::MultiperspectivePerceptron::ACYCLIC::setBitRequirements().
◆ size
| const int gem5::branch_prediction::MultiperspectivePerceptron::HistorySpec::size |
Pre-assigned size in bits assigned to this feature.
Definition at line 236 of file multiperspective_perceptron.hh.
◆ width
| const int gem5::branch_prediction::MultiperspectivePerceptron::HistorySpec::width |
Width of the table in bits
Definition at line 238 of file multiperspective_perceptron.hh.
Referenced by gem5::branch_prediction::MultiperspectivePerceptron::computeOutput(), and gem5::branch_prediction::MultiperspectivePerceptron::train().
The documentation for this struct was generated from the following file:
- cpu/pred/multiperspective_perceptron.hh