Details:
- Implemented support for gemm where A, B, and C may have different
storage datatypes, as well as a computational precision (and implied
computation domain) that may be different from the storage precision
of either A or B. This results in 128 different combinations, all
which are implemented within this commit. (For now, the mixed-datatype
functionality is only supported via the object API.) If desired, the
mixed-datatype support may be disabled at configure-time.
- Added a memory-intensive optimization to certain mixed-datatype cases
that requires a single m-by-n matrix be allocated (temporarily) per
call to gemm. This optimization aims to avoid the overhead involved in
repeatedly updating C with general stride, or updating C after a
typecast from the computation precision. This memory optimization may
be disabled at configure-time (provided that the mixed-datatype
support is enabled in the first place).
- Added support for testing mixed-datatype combinations to testsuite.
The user may test gemm with mixed domains, precisions, both, or
neither.
- Added a standalone test driver directory for building and running
mixed-datatype performance experiments.
- Defined a new variation of castm, castnzm, which operates like castm
except that imaginary values are not touched when casting a real
operand to a complex operand. (By contrast, in these situations castm
sets the imaginary components of the destination matrix to zero.)
- Defined bli_obj_imag_is_zero() and substituted calls in lieu of all
usages of bli_obj_imag_equals() that tested against BLIS_ZERO, and
also simplified the implementation of bli_obj_imag_equals().
- Fixed bad behavior from bli_obj_is_real() and bli_obj_is_complex()
when given BLIS_CONSTANT objects.
- Disabled dt_on_output field in auxinfo_t structure as well as all
accessor functions. Also commented out all usage of accessor
functions within macrokernels. (Typecasting in the microkernel is
still feasible, though probably unrealistic for now given the
additional complexity required.)
- Use void function pointer type (instead of void*) for storing function
pointers in bli_l0_fpa.c.
- Added documentation for using gemm with mixed datatypes in
docs/MixedDatatypes.md and example code in examples/oapi/11gemm_md.c.
- Defined level-1d operation xpbyd and level-1m operation xpbym.
- Added xpbym test module to testsuite.
- Updated frame/include/bli_x86_asm_macros.h with additional macros
(courtsey of Devin Matthews).
Details:
- Added lines associated with the testsuite's new threading option to
input.general.fast. This change was intended for the previous commit
(10d0735).
Details:
- Added an 'input.operations.fast' file to testsuite directory to go
along with the 'input.general.fast' file used by the 'make check'
target in the top-level Makefile. This will allow the "fast" check
to prune operations and/or parameter combinations from the test
space in order to save time.
- Currently, input.operations.fast prunes trmm3 and all transposition
and conjugation parameters from the level-3 test space.
- Reduced problem size tested in input.general.fast to 100 and disabled
testing of 1m method.
Details:
- Created a new test suite that exercises only the BLAS compatibility
found in BLIS. The test suite is a straightforward port of code
obtained from netlib LAPACK, run through f2c and linked to a stripped-
down version of libf2c that is compiled along with the test drivers
(to prevent any obvious ABI issues). The new BLAS test suite can be
run from within its new local directory, 'blastest' (through its local
'make ; make run' targets) or from the top-level Makefile (via the
'make testblas' target). Output files are created in whatever directory
the test drivers are run, whether it be the 'blastest' directory, the
top-level source distribution directory, or the out-of-tree directory
in which 'configure' was run. Also, the results of the BLAS test suite
can be checked via 'make checkblas', which summarizes the presence or
absence of test failures in a single line printed to stdout.
- Updated the 'test' target to run both 'testblis' and 'testblas'.
- Added a new 'testblis-fast' target that runs the BLIS testsuite with
smaller problem sizes, allowing it to finish more quickly.
- Added a 'make check' target, which runs 'checkblis-fast' and
'checkblas'.
- Changed .travis.yml so that Travis CI runs 'testblis-fast' instead of
'testblis' before (calling the check-blistest.sh script to check the
result manually).
- Renamed some targets in the top-level Makefile to be consistent between
BLAS and BLIS.
