Intel® C++ Compiler 16.0 User and Reference Guide
This topic only applies to Intel® Many Integrated Core Architecture (Intel® MIC Architecture).
The MIC_PROXY_IO=0|1 environment variable controls the proxy of stderr and stdout. It specifies whether the process wants I/O proxy support between the host and coprocessor.
The default is 1 (enable proxy of I/O from coprocessor to host).