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Make parallel execution the default for test-z3

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Parallel mode (/j) is now the default. Use /seq to force serial execution.
Child processes are invoked with /seq to prevent recursive parallelism.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Lev Nachmanson 2026-03-18 15:07:33 -10:00 • committed by Lev Nachmanson
parent 9fea91d0eb
commit 04d2e66aab
1 changed files with 10 additions and 1 deletions
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11
src/test/main.cpp
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@ -223,6 +223,7 @@ void display_usage() {
std::cout << " /a run all unit tests that don't require arguments.\n";
#ifndef __EMSCRIPTEN__
std::cout << " /j[:N] run tests in parallel using N jobs (default: number of cores).\n";
std::cout << " /seq run tests sequentially, disabling parallel execution.\n";
#endif
#if defined(Z3DEBUG) || defined(_TRACE)
std::cout << "\nDebugging support:\n";
@ -290,6 +291,9 @@ void parse_cmd_line_args(int argc, char ** argv, bool& do_display_usage, bool& t
error("/j option is not supported on this platform.");
#endif
}
else if (strcmp(opt_name, "seq") == 0) {
num_jobs = 0;
}
#ifdef _TRACE
else if (strcmp(opt_name, "tr") == 0) {
if (!opt_arg)
@ -343,7 +347,7 @@ static test_result run_test_child(const char* exe_path, const char* test_name,
result.name = test_name;
std::ostringstream cmd;
cmd << "\"" << exe_path << "\"" << " " << test_name;
cmd << "\"" << exe_path << "\"" << " /seq " << test_name;
for (const auto& arg : extra_args)
cmd << " " << arg;
cmd << " 2>&1";
@ -510,7 +514,12 @@ int main(int argc, char ** argv) {
bool do_display_usage = false;
bool test_all = false;
#ifndef __EMSCRIPTEN__
unsigned hw = std::thread::hardware_concurrency();
unsigned num_jobs = hw > 0 ? hw : 4;
#else
unsigned num_jobs = 0;
#endif
std::vector<std::string> extra_args;
parse_cmd_line_args(argc, argv, do_display_usage, test_all, num_jobs, extra_args);