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diff --git a/Source/Common/CrossProcessMutex.h b/Source/Common/CrossProcessMutex.h
index 2f3ce70..f0fcd42 100644
--- a/Source/Common/CrossProcessMutex.h
+++ b/Source/Common/CrossProcessMutex.h
@@ -127,9 +127,13 @@ class CrossProcessMutex
public:
CrossProcessMutex(const std::string& name)
- : m_fd(-1),
- m_fileName("/var/lock/" + name)
+ : m_fd(-1)
{
+ const char * const envLockDir = getenv("CNTK_LOCK_DIR");
+ if (envLockDir != NULL)
+ m_fileName = envLockDir + ('/' + name);
+ else
+ m_fileName = "/var/lock/" + name;
}
// Acquires the mutex. If 'wait' is true and mutex is acquired by someone else then
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