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Suppress info strings before 'uci'

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On Windows, Stockfish wouldn't launch in some GUI because we output some
info strings (about the use of large pages) before sending the 'uci'
command. It seems more robust to suppress these info strings, and instead
to add a proper section section in the Readme about large pages use.

fixes https://github.com/official-stockfish/Stockfish/issues/3052
closes https://github.com/official-stockfish/Stockfish/pull/3147

No functional change
This commit is contained in:
Stéphane Nicolet
2020-09-24 11:38:35 +02:00
committed by Joost VandeVondele
parent 3d5b2c8a51
commit 5e6a5e48e6
2 changed files with 9 additions and 23 deletions
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16
src/misc.cpp
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@@ -408,22 +408,8 @@ static void* aligned_large_pages_alloc_win(size_t allocSize) {
void* aligned_large_pages_alloc(size_t allocSize) {
static bool firstCall = true;
void* mem;
// Try to allocate large pages
mem = aligned_large_pages_alloc_win(allocSize);
// Suppress info strings on the first call. The first call occurs before 'uci'
// is received and in that case this output confuses some GUIs.
if (!firstCall)
{
if (mem)
sync_cout << "info string Hash table allocation: Windows large pages used." << sync_endl;
else
sync_cout << "info string Hash table allocation: Windows large pages not used." << sync_endl;
}
firstCall = false;
void* mem = aligned_large_pages_alloc_win(allocSize);
// Fall back to regular, page aligned, allocation if necessary
if (!mem)