All AMD specific optimization in BLIS are enclosed in BLIS_CONFIG_EPYC
pre-preprocessor, this was not defined in CMake which are resulting in
overall lower performance.
Updated version number to 3.1.1
Change-Id: I9848b695a599df07da44e77e71a64414b28c75b9
Details:
- Since GEMM kernel prefers row-storage, if input C matrix is in col-major order,
entire operation is transposed. In that case uplo(c) needs to be toggled
before kernel-variant selection.
- disabled "bli_gemmsup_ref_var1n2m_opt_cases" inside gemmtsup.
- Updated version number to 2.2.1
Change-Id: I0a85df1141fc4a98d98ea4e0c3d42db8602fa69b
Details:
- Implemented the 1m method for inducing complex domain matrix
multiplication. 1m support has been added to all level-3 operations,
including trsm, and is now the default induced method when native
complex domain gemm microkernels are omitted from the configuration.
- Updated _cntx_init() operations to take a datatype parameter. This was
needed for the corresponding function for 1m (because 1m requires us
to choose between column-oriented or row-oriented execution, which
requires us to query the context for the storage preference of the
gemm microkernel, which requires knowing the datatype) but I decided
that it made sense for consistency to add the parameter to all other
cntx initialization functions as well, even though those functions
don't use the parameter.
- Updated bli_cntx_set_blkszs() and bli_gks_cntx_set_blkszs() to take
a second scalar for each blocksize entry. The semantic meaning of the
two scalars now is that the first will scale the default blocksize
while the second will scale the maximum blocksize. This allows scaling
the two independently, and was needed to support 1m, which requires
scaling for a register blocksize but not the register storage
blocksize (ie: "packdim") analogue.
- Deprecated bli_blksz_reduce_dt_to() and defined two new functions,
bli_blksz_reduce_def_to() and bli_blksz_reduce_max_to(), for reducing
default and maximum blocksizes to some desired blocksize multiple.
These functions are needed in the updated definitions of
bli_cntx_set_blkszs() and bli_gks_cntx_set_blkszs().
- Added support for the 1e and 1r packing schemas to packm, including
1e/1r packing kernels.
- Added a minor optimization to bli_gemm_ker_var2() that allows, under
certain circumstances (specifically, real domain beta and row- or
column-stored matrix C), the real domain macrokernel and microkernel
to be called directly, rather than using the virtual microkernel
via the complex domain macrokernel, which carries a slight additional
amount of overhead.
- Added 1m support to the testsuite.
- Added 1m support to Makefile and runme.sh in test/3m4m. Also simplified
some code in test_gemm.c driver.
Details:
- Reorganized code and renamed files defining APIs related to multithreading.
All code that is not specific to a particular operation is now located in a
new directory: frame/thread. Code is now organized, roughly, by the
namespace to which it belongs (see below).
- Consolidated all operation-specific *_thrinfo_t object types into a single
thrinfo_t object type. Operation-specific level-3 *_thrinfo_t APIs were
also consolidated, leaving bli_l3_thrinfo_*() and bli_packm_thrinfo_*()
functions (aside from a few general purpose bli_thrinfo_*() functions).
- Renamed thread_comm_t object type to thrcomm_t.
- Renamed many of the routines and functions (and macros) for multithreading.
We now have the following API namespaces:
- bli_thrinfo_*(): functions related to thrinfo_t objects
- bli_thrcomm_*(): functions related to thrcomm_t objects.
- bli_thread_*(): general-purpose functions, such as initialization,
finalization, and computing ranges. (For now, some macros, such as
bli_thread_[io]broadcast() and bli_thread_[io]barrier() use the
bli_thread_ namespace prefix, even though bli_thrinfo_ may be more
appropriate.)
- Renamed thread-related macros so that they use a bli_ prefix.
- Renamed control tree-related macros so that they use a bli_ prefix (to be
consistent with the thread-related macros that were also renamed).
- Removed #undef BLIS_SIMD_ALIGN_SIZE from dunnington's bli_kernel.h. This
#undef was a temporary fix to some macro defaults which were being applied
in the wrong order, which was recently fixed.
Details:
- Changed bl2_obj_induce_trans() so that the transposition bit is no longer
updated as part of the macro. All current uses of the macro have been
coupled with instances of bl2_obj_set_trans() to clear the bit.
- Added Jed to CREDITS file.
Details:
- Retired the blas2blis wrappers that simply called abort with a "not yet
implemented" message. This includes all of the level-2 banded and packed
routines.
- Replaced the aforementioned with the corresponding netlib implementations
having been run through f2c (with some customization).
- Added directories named 'attic' to build/gen-make-frags/ignore_list.
Details:
- Moved the Fortran-77 name-mangling macros from bl2_blas_macro_defs.h to the
configuration directory (bl2_config.h, specifically) given that it can be
expected to be tweaked by some developers.
Details:
- Added the blas2blis compatibility layer, located in frame/compat. This
includes virtually all of the BLAS, including banded and packed level-2
operations.
- Defined bl2_init_safe(), bl2_finalize_safe(). The former allows a conditional
initialization, which stores the "exit status" in an err_t, which is then
read by the latter function to determine whether finalization should actually
take place.
- Added calls to bl2_init_safe(), bl2_finalize_safe() to all level-2 and
level-3 BLAS-like wrappers.
- Added configuration option to instruct BLIS to remain initialized whenever
it automatically initializes itself (via bl2_init_safe()), until/unless the
application code explicitly calls bl2_finalize().
- Added INSERT_GENTFUNC* and INSERT_GENTPROT* macros to facilitate type
templatization of blas2blis wrappers.
- Defined level-0 scalar macro bl2_??swaps().
- Defined level-1v operation bl2_swapv().
- Defined some "Fortran" types to bl2_type_defs.h for use with BLAS
wrappers.
Details:
- Removed diagx parameter from lower-level interfaces of scalm.
- Modified scalm_basic_check() to expect an object with a nonunit diagonal.
- Changed setm_unb_var1() so that having an implicit unit diagonal results
in only the strictly lower or upper triangle of the matrix being modified.
Details:
- Removed calls to setv() in test modules whose sole purpose was to
initialize vectors to zero to ensure that nan's and inf's would not
taint the computation. Now that beta == zero semantics have been
updated to clear the output operand (when beta is zero), rather than
multiply against it, these setv() calls are no longer needed.
Details:
- Changed name of set0 and set0_mxn macros to set0s and set0s_mxn,
respectively.
- Added code to the following operations that sets the output operand to
zero if the corresponding scalar is zero (rather than performing the
floating-point multiply, or in the case of setv, copying the value).
This will prevent nan's and inf's from creeping into results from
uninitialized memory.
- axpy
- dotxv
- scalv
- scal2v
- setv
- gemv
- ger
- hemv
- her
- her2
- gemm reference ukernels
Details:
- Added bl2_packm_unb_var1() back into the mix once I realized that level-2
operations still need this routine for packing matrices. Now, whether
level-2 operations should be packing matrices to begin with is another
matter. But this fixes the segmentation fault one would have gotten when
running bl2_gemv() on a general stride matrix.
Details:
- Added new fields to obj_t info field:
- invert_diag
- pack_order_if_upper
- pack_order_if_lower
These fields allow packm_init() to embed information that begins
in the control tree into the object so that the packm implementation
does not need to use control trees at all. This is being done to aid
Bryan's DxT code generation.
- Added macros that operate on above fields.
- Changed packm_init(), packm_blk_var2(), and packm_blk_var3() according
to above changes.
- Made similar (but much simpler) changes to packv.
- Deprecated packm_blk_var1(), packm_unb_var1(), and packm_densify().
These were part of prototype implementations and are no longer needed.
