Until now, the code in `num_cpu_avail()`,
if (blas_cpu_number != openmp_nthreads) {
goto_set_num_threads(openmp_nthreads);
}
would just always set the threads back to OpenMP's thread count.
1. Added bfloat16 based dot as new API: shdot
2. Implemented generic kernel and cooperlake-specific (AVX512-BF16) kernel for shdot
3. Added 4 conversion APIs for bfloat16 data type <=> single/double: shstobf16 shdtobf16 sbf16tos dbf16tod
shstobf16 -- convert single float array to bfloat16 array
shdtobf16 -- convert double float array to bfloat16 array
sbf16tos -- convert bfloat16 array to single float array
dbf16tod -- convert bfloat16 array to double float array
4. Implemented generic kernels for all 4 conversion APIs, and cooperlake-specific kernel for shstobf16 and shdtobf16
5. Update level1 thread facilitate functions and macros to support multi-threading for these new APIs
6. Fix Cooperlake platform detection/specify issue when under dynamic-arch building
7. Change the typedef of bfloat16 from unsigned short to more strict uint16_t
Signed-off-by: Chen, Guobing <guobing.chen@intel.com>
../common_thread.h:138:24: warning: equality comparison with extraneous parentheses [-Wparentheses-equality]
if ((blas_cpu_number == 1)
~~~~~~~~~~~~~~~~^~~~
../common_thread.h:138:24: note: remove extraneous parentheses around the comparison to silence this warning
if ((blas_cpu_number == 1)
~ ^ ~
../common_thread.h:138:24: note: use '=' to turn this equality comparison into an assignment
if ((blas_cpu_number == 1)
^~
=
Martin Kroeker