User and Reference Guide for the Intel® C++ Compiler 14.0
This topic only applies to IA-32 architecture targeting Intel® Graphics Technology. Intel® Graphics Technology is a preview feature.
Memory management on the CPU for pointer variables used in offloaded programs is the same as non-offload programs. That is, the offload pragmas do not affect memory allocation and freeing on the CPU. As usual, you, the programmer, must do this.
Memory management on the coprocessor for pointer variables named in in and out clauses of #pragma offload is done automatically by the compiler and runtime system. For the pin clause, the same host memory is reused.
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Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice. Notice revision #20110804 |