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author | Nilay Vaish <nilay@cs.wisc.edu> | 2014-10-11 15:02:23 -0500 |
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committer | Nilay Vaish <nilay@cs.wisc.edu> | 2014-10-11 15:02:23 -0500 |
commit | e8ed7b1d1b5bef31e9874f679a5797c2e00d06f1 (patch) | |
tree | 421c9c50377aa664958685914f5504c4c019e21f /ext/dsent/model/timing_graph/ElectricalDriverMultiplier.h | |
parent | a098fad174d8559037602b248b8e6f7f46bfebbb (diff) | |
download | gem5-e8ed7b1d1b5bef31e9874f679a5797c2e00d06f1.tar.xz |
ext: add the source code for DSENT
This patch adds a tool called DSENT to the ext/ directory. DSENT
is a tool that models power and area for on-chip networks. The next
patch adds a script for using the tool.
Diffstat (limited to 'ext/dsent/model/timing_graph/ElectricalDriverMultiplier.h')
-rw-r--r-- | ext/dsent/model/timing_graph/ElectricalDriverMultiplier.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/ext/dsent/model/timing_graph/ElectricalDriverMultiplier.h b/ext/dsent/model/timing_graph/ElectricalDriverMultiplier.h new file mode 100644 index 000000000..62b14569f --- /dev/null +++ b/ext/dsent/model/timing_graph/ElectricalDriverMultiplier.h @@ -0,0 +1,42 @@ +#ifndef __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__ +#define __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__ + +#include "util/CommonType.h" +#include "model/timing_graph/ElectricalTimingNode.h" + +namespace DSENT +{ + // Simple class that can be used to mimic the presence of multiple drivers + // output drivers (each driving one of the downstream loads) when only one + // such driver has been instantiated (such as models that take advantage of + // bit duplicattion). When the downsream loads differ in load cap, it + // just returns the largest of the caps + class ElectricalDriverMultiplier : public ElectricalTimingNode + { + public: + ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_); + virtual ~ElectricalDriverMultiplier(); + + public: + // Calculate drive resistance of this node; + double calculateDriveRes(double input_drive_res_) const; + // Calculate wiring delay (or net delay) + double calculateDelay() const; + // Calculate transition + double calculateTransition() const; + // get total amount of downstream load capacitance + double getTotalDownstreamCap() const; + + private: + // Disable copy constructor + ElectricalDriverMultiplier(const ElectricalDriverMultiplier& net_); + + private: + // Name of this instance + String m_instance_name_; + }; + +} // namespace DSENT + +#endif // __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__ + |