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Warn only once if too few CPUs.

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This commit is contained in:
Wilson Snyder 2019-06-15 09:17:51 -04:00
parent 34ef3c9c38
commit 659c7b78d5
1 changed files with 5 additions and 2 deletions
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7
include/verilated_threads.cpp
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@ -119,8 +119,11 @@ VlThreadPool::VlThreadPool(int nThreads, bool profiling)
// --threads N passes nThreads=N-1, as the "main" threads counts as 1 // --threads N passes nThreads=N-1, as the "main" threads counts as 1
unsigned cpus = std::thread::hardware_concurrency(); unsigned cpus = std::thread::hardware_concurrency();
if (cpus < nThreads+1) { if (cpus < nThreads+1) {
VL_PRINTF_MT("%%Warning: System has %u CPUs but model Verilated with" static int warnedOnce = 0;
" --threads %d; may run slow.\n", cpus, nThreads+1); if (!warnedOnce++) {
VL_PRINTF_MT("%%Warning: System has %u CPUs but model Verilated with"
" --threads %d; may run slow.\n", cpus, nThreads+1);
}
} }
// Create'em // Create'em
for (int i=0; i<nThreads; ++i) { for (int i=0; i<nThreads; ++i) {