Common Functions

This section describes the Intel IPP functions that perform special operations common for all domains. For example, the function ippGetStatusString gets a brief description of the status code returned by the Intel IPP software. The function ippGetCpuType retrieves the type of the processor in the system running the software.

Optimization Notice
The Intel® Integrated Performance Primitives (Intel® IPP) library contains functions that are more highly optimized for Intel microprocessors than for other microprocessors. While the functions in the Intel® IPP library offer optimizations for both Intel and Intel-compatible microprocessors, depending on your code and other factors, you will likely get extra performance on Intel microprocessors. While the paragraph above describes the basic optimization approach for the Intel® IPP library as a whole, the library may or may not be optimized to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include Intel® Streaming SIMD Extensions 2 (Intel® SSE2), Intel® Streaming SIMD Extensions 3 (Intel® SSE3), and Supplemental Streaming SIMD Extensions 3 (Intel® 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. Intel recommends that you evaluate other library products to determine which best meets your requirements.

Optimization Notice

The Intel® Integrated Performance Primitives (Intel® IPP) library contains functions that are more highly optimized for Intel microprocessors than for other microprocessors. While the functions in the Intel® IPP library offer optimizations for both Intel and Intel-compatible microprocessors, depending on your code and other factors, you will likely get extra performance on Intel microprocessors.

While the paragraph above describes the basic optimization approach for the Intel® IPP library as a whole, the library may or may not be optimized to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include Intel® Streaming SIMD Extensions 2 (Intel® SSE2), Intel® Streaming SIMD Extensions 3 (Intel® SSE3), and Supplemental Streaming SIMD Extensions 3 (Intel® 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.

Intel recommends that you evaluate other library products to determine which best meets your requirements.

The function ippGetCpuClocks gets the current number of processor clocks, which is widely used for operations timing. The functions ippSetFlushToZero and ippSetDenormAreZeros enable or disable special processor modes. The function ippAlignPtr performs pointer alignment. The functions ippMalloc and ippFree allow to allocate and free the memory block aligned to 32-byte boundary. The specific subset contains functions to control the dispatching of the merged static libraries. All these functions are grouped in the separate sub-library called ippcore.

ippGetStatusString
Translates a status code into a message.
ippGetCpuType
Returns a processor type.
ippGetCpuClocks
Returns a current value of the time stamp counter (TSC) register.
ippGetCpuFreqMhz
Estimates the processor operating frequency.
ippGetCpuFeatures
Retrieves the processor features.
ippGetEnabledCpuFeatures
Returns a features mask for enabled processor features.
ippGetNumCoresOnDie
Returns the number of cores for the multi-core processors.
ippGetMaxCacheSizeB
Returns maximum size of the L2 and L3 caches of the processor.
ippSetFlushToZero
Enables or disables flush-to-zero mode.
ippSetDenormAreZeros
Enables or disables denormals-are-zero mode.
ippAlignPtr
Aligns a pointer to the specified number of bytes.
ippSetNumThreads
Sets the number of threads in the multithreading environment.
ippGetNumThreads
Returns the number of existing threads in the multithreading environment.
ippSetAffinity
Binds OpenMP threads to OS processors.
ippMalloc
Allocates memory aligned to 32-byte boundary.
ippFree
Frees memory allocated by the function ippMalloc.

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