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Code Activity

Merge pull request #33 from alaindargelas/activity_info

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Activity info
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Akash Levy 2024-12-11 12:01:20 -08:00 • committed by GitHub
commit 713f80e850
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3 changed files with 24 additions and 7 deletions
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27
passes/cmds/activity.cc
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@ -28,6 +28,7 @@ struct ActivityProp {
Module *module;
SigMap sigmap;
uint32_t nbBitsWithActivity = 0;
uint32_t wireCount = 0;
// Split a string based on separator, returns a vector of tokens as reference argument
// If skipEmpty is true, return "" for string " ", when separator is " "
@ -66,7 +67,14 @@ struct ActivityProp {
std::map<SigBit, std::string> ActivityMap;
std::map<SigBit, std::string> DutyMap;
// Build {signal bit - activity} map from the wire activities calculated in the sim pass
bool debug = false;
if (std::getenv("DEBUG_ACTIVITY_PROP")) {
debug = true;
}
int localActivity = 0;
for (Wire *wire : module->wires()) {
wireCount++;
SigSpec sig(sigmap(wire));
// Retrieve the activity/dutycycle attributes created in the sim pass, attached to wires, in the form:
// $ACKT: 0.1 0.2 .... (Each bit in a bus has its own activity, index 0 of the bus is left most)
@ -83,14 +91,20 @@ struct ActivityProp {
ActivityMap.emplace(bit, activities[i]);
DutyMap.emplace(bit, duties[i]);
nbBitsWithActivity++;
localActivity++;
if (debug)
log("Found activity for module: %s, wire: %s, wire_size: %d, activity: %s\n", module->name.c_str(), wire->name.c_str(), GetSize(sig), act.c_str());
} else {
log_warning("Zeroing out activity for module: %s, wire: %s, wire_size: %d, activ_size: %ld\n",
module->name.c_str(), wire->name.c_str(), GetSize(sig), activities.size());
if (debug)
log_warning("Zeroing out activity for module: %s, wire: %s, wire_size: %d, activ_size: %ld\n",
module->name.c_str(), wire->name.c_str(), GetSize(sig), activities.size());
ActivityMap.emplace(bit, "0.0");
DutyMap.emplace(bit, "0.0");
}
}
}
if (localActivity)
log("Collected %d bits with activity in module %s out of %d wires\n", localActivity, module->name.c_str(), wireCount);
// Attach port activity to cell using sigmap
for (auto cell : module->cells()) {
std::string cell_ports_activity;
@ -136,6 +150,7 @@ struct ActivityProp {
}
uint32_t getNbBitsWithActivity() { return nbBitsWithActivity; }
uint32_t getWireCount() { return wireCount; }
};
struct ActivityClear {
@ -174,11 +189,13 @@ struct ActivityPropPass : public Pass {
}
extra_args(args, argidx, design);
uint32_t totalNbBitsWithActivity = 0;
for (auto module : design->modules()) {
uint32_t wireCount = 0;
for (auto module : design->selected_modules()) {
ActivityProp worker(module);
totalNbBitsWithActivity += worker.getNbBitsWithActivity();
wireCount += worker.getWireCount();
}
log("Collected %d bits with activity\n", totalNbBitsWithActivity);
log("Collected %d bits in total with activity out of %d wires\n", totalNbBitsWithActivity, wireCount);
log_flush();
}
} ActivityPropPass;
@ -203,7 +220,7 @@ struct ActivityClearPass : public Pass {
}
extra_args(args, argidx, design);
for (auto module : design->modules()) {
for (auto module : design->selected_modules()) {
ActivityClear worker(module);
}
}

2
passes/sat/sim.cc
View file

@ -2440,7 +2440,7 @@ struct AnnotateActivity : public OutputWriter {
}
}
}
log("Computing signal activity for %ld signals (%d bits)", use_signal.size(), nbTotalBits);
log("Computing signal activity for %ld signals (%d bits)\n", use_signal.size(), nbTotalBits);
log_flush();
// Max simulation time
int max_time = 0;