Memory Alignment

[Prashanthns]

Is there any way by which we can direct the compiler to align memory while allocating memory statically or dynamically ??

[Andreas_Klaedtke]

Have a look at the documentation of the -align option.
These sites might be useful to you as well:
http://software.intel.com/sites/products/documentation/hpc/ipp/ia32/ippugch7/Memory_Alignment.htm
http://software.intel.com/en-us/articles/performance-tools-for-software-developers-memory-function-faq/
This topic might also be of interest:
http://software.intel.com/en-us/forums/showthread.php?t=73470

[levicki]

For static allocation use __declspec(aligned(n)) where n is required alignment (16, 64, 128 bytes).

For dynamic allocation use functions such as _mm_malloc() and _mm_free() (they are defined with SIMD intrinsics).

For dynamic allocation in C++ code (i.e. when allocating objects of some class which have a member that shoudl be aligned) you need to override new and delete operators using placement new and delete.