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qsp_sim: --verbose-evolve flag (default off) #29

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Merged
jeliason merged 1 commit into from
May 18, 2026
Merged

qsp_sim: --verbose-evolve flag (default off) #29

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22 changes: 19 additions & 3 deletions cpp/src/qsp_sim_main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,14 @@ struct Args {
// else 86400.0). Set via --time-unit days|seconds, or directly with
// --time-factor <N>.
double time_factor_override = -1.0;
// --verbose-evolve: when true, the evolve-to-diagnosis hook prints
// every healthy-IC species write + a per-365-day diameter line +
// the post-evolve `t_diag=... diameter=...` summary to stderr.
// Default false — for parity-trace / hand-debugging only; on a 5k
// SBI run the per-sim chatter dominates the log (and crash dumps
// capture it on every failure, ballooning failure messages). The
// `REJECTED` cerr remains unconditional since it's a hard error.
bool verbose_evolve = false;
};

// Evolve-cache file format (QSTH blob). Fixed 128-byte header followed by
Expand Down Expand Up @@ -193,6 +201,10 @@ void print_usage(const char* prog) {
<< " last row = at-diagnosis state).\n"
<< " --evolve-trajectory-dt-days <N> dump every N days of model time\n"
<< " (default 0 = use evolve spec step_days).\n"
<< " --verbose-evolve stderr-print every healthy-IC species\n"
<< " write + per-365-day diameter line +\n"
<< " post-evolve t_diag summary (default\n"
<< " off; for parity-trace / hand-debug).\n"
<< "\n"
<< "Output cadence:\n"
<< " --min-cadence-hours <N> upper bound on inter-row spacing (default 4.0).\n"
Expand Down Expand Up @@ -308,6 +320,8 @@ bool parse_args(int argc, char* argv[], Args& out) {
std::cerr << "--time-factor must be > 0" << std::endl;
return false;
}
} else if (a == "--verbose-evolve") {
out.verbose_evolve = true;
} else if (a == "-h" || a == "--help") {
return false;
} else {
Expand Down Expand Up @@ -692,7 +706,7 @@ int main(int argc, char* argv[]) {
EvolveOpts eo;
eo.yaml_path = args.healthy_yaml;
eo.time_factor = time_factor;
eo.verbose = true;
eo.verbose = args.verbose_evolve;
// Burn-in trajectory dump: same v2 binary format as --binary-out.
// Reuse the same compartment/rule layout the post-scenario writer
// emits so downstream readers can use one schema for both phases.
Expand All @@ -706,8 +720,10 @@ int main(int argc, char* argv[]) {
<< er.reject_reason << std::endl;
return 2;
}
std::cerr << "evolve_to_diagnosis: t_diag=" << er.t_diagnosis_days
<< " d, diameter=" << er.diameter_cm << " cm\n";
if (args.verbose_evolve) {
std::cerr << "evolve_to_diagnosis: t_diag=" << er.t_diagnosis_days
<< " d, diameter=" << er.diameter_cm << " cm\n";
}
t_offset = er.t_diagnosis_days * time_factor;

if (!args.dump_state_path.empty()) {
Expand Down
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