From 6e59483f82edd09a8f90751d832e7c2794e42c67 Mon Sep 17 00:00:00 2001
From: psychocrypt <psychocryptHPC@gmail.com>
Date: Sat, 13 Jan 2018 21:23:59 +0100
Subject: [PATCH] fix set affinity for windows
Ignore any affinity >=64 and throw a warning.
---
xmrstak/backend/cpu/minethd.cpp | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/xmrstak/backend/cpu/minethd.cpp b/xmrstak/backend/cpu/minethd.cpp
index 48425e5..f30d1fe 100644
--- a/xmrstak/backend/cpu/minethd.cpp
+++ b/xmrstak/backend/cpu/minethd.cpp
@@ -73,7 +73,16 @@ namespace cpu
bool minethd::thd_setaffinity(std::thread::native_handle_type h, uint64_t cpu_id)
{
#if defined(_WIN32)
- return SetThreadAffinityMask(h, 1ULL << cpu_id) != 0;
+ // we can only pin up to 64 threads
+ if(cpu_id < 64)
+ {
+ return SetThreadAffinityMask(h, 1ULL << cpu_id) != 0;
+ }
+ else
+ {
+ printer::inst()->print_msg(L0, "WARNING: Windows supports only affinity up to 63.");
+ return false;
+ }
#elif defined(__APPLE__)
thread_port_t mach_thread;
thread_affinity_policy_data_t policy = { static_cast<integer_t>(cpu_id) };
--
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