mathexpr_powermodel.hh (11800:54436a1784dc) mathexpr_powermodel.hh (11967:e963e6ce139b)
1/*
1/*
2 * Copyright (c) 2016 ARM Limited
2 * Copyright (c) 2016-2017 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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61 typedef MathExprPowerModelParams Params;
62 MathExprPowerModel(const Params *p);
63
64 /**
65 * Get the dynamic power consumption.
66 *
67 * @return Power (Watts) consumed by this object (dynamic component)
68 */
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

--- 50 unchanged lines hidden (view full) ---

61 typedef MathExprPowerModelParams Params;
62 MathExprPowerModel(const Params *p);
63
64 /**
65 * Get the dynamic power consumption.
66 *
67 * @return Power (Watts) consumed by this object (dynamic component)
68 */
69 double getDynamicPower() const {
70 return dyn_expr.eval(
71 std::bind(&MathExprPowerModel::getStatValue,
72 this, std::placeholders::_1)
73 );
74 }
69 double getDynamicPower() const { return eval(dyn_expr); }
75
76 /**
77 * Get the static power consumption.
78 *
79 * @return Power (Watts) consumed by this object (static component)
80 */
70
71 /**
72 * Get the static power consumption.
73 *
74 * @return Power (Watts) consumed by this object (static component)
75 */
81 double getStaticPower() const {
82 return st_expr.eval(
83 std::bind(&MathExprPowerModel::getStatValue,
84 this, std::placeholders::_1)
85 );
86 }
76 double getStaticPower() const { return eval(st_expr); }
87
88 /**
89 * Get the value for a variable (maps to a stat)
90 *
91 * @param name Name of the variable to retrieve the value from
92 *
93 * @return Power (Watts) consumed by this object (static component)
94 */
95 double getStatValue(const std::string & name) const;
96
97 void startup();
98
99 void regStats();
100
101 private:
77
78 /**
79 * Get the value for a variable (maps to a stat)
80 *
81 * @param name Name of the variable to retrieve the value from
82 *
83 * @return Power (Watts) consumed by this object (static component)
84 */
85 double getStatValue(const std::string & name) const;
86
87 void startup();
88
89 void regStats();
90
91 private:
92 /**
93 * Evaluate an expression in the context of this object, fatal if
94 * evaluation fails.
95 *
96 * @param expr Expression to evaluate
97 * @return Value of expression.
98 */
99 double eval(const MathExpr &expr) const;
102
100
101 /**
102 * Evaluate an expression in the context of this object, set
103 * failed if evaluation failed.
104 *
105 * @param expr Expression to evaluate
106 * @return Value of expression.
107 */
108 double tryEval(const MathExpr &expr) const;
109
103 // Math expressions for dynamic and static power
104 MathExpr dyn_expr, st_expr;
105
106 // Basename of the object in the gem5 stats hierachy
107 std::string basename;
108
109 // Map that contains relevant stats for this power model
110 std::unordered_map<std::string, Stats::Info*> stats_map;
110 // Math expressions for dynamic and static power
111 MathExpr dyn_expr, st_expr;
112
113 // Basename of the object in the gem5 stats hierachy
114 std::string basename;
115
116 // Map that contains relevant stats for this power model
117 std::unordered_map<std::string, Stats::Info*> stats_map;
118
119 // Did the expression fail to evaluate (e.g., because a stat value
120 // can't be resolved)
121 mutable bool failed;
111};
112
113#endif
122};
123
124#endif