Details:
- Fixed a makefile error encountered when building the testsuite directly
in its directory (as opposed to indirectly via 'make test'). The fix
involves introducing a new variable, BUILD_PATH, alongside the existing
DIST_PATH variable. By default, BUILD_PATH is set to the current
directory, and is overridden by other Makefiles used by, for example,
the testsuite and standalone test drivers in testsuite or test,
respectively.
- Some files/directories in common.mk were redefined in terms of
BUILD_DIR, such as the locations of config.mk file and the intermediate
include directory.
Details:
- Defined two new functions in bli_init.c: bli_init_once() and
bli_finalize_once(). Each is implemented with pthread_once(), which
guarantees that, among the threads that pass in the same pthread_once_t
data structure, exactly one thread will execute a user-defined function.
(Thus, there is now a runtime dependency against libpthread even when
multithreading is not enabled at configure-time.)
- Added calls to bli_init_once() to top-level user APIs for all
computational operations as well as many other functions in BLIS to
all but guarantee that BLIS will self-initialize through the normal
use of its functions.
- Rewrote and simplified bli_init() and bli_finalize() and related
functions.
- Added -lpthread to LDFLAGS in common.mk.
- Modified the bli_init_auto()/_finalize_auto() functions used by the
BLAS compatibility layer to take and return no arguments. (The
previous API that tracked whether BLIS was initialized, and then
only finalized if it was initialized in the same function, was too
cute by half and borderline useless because by default BLIS stays
initialized when auto-initialized via the compatibility layer.)
- Removed static variables that track initialization of the sub-APIs in
bli_const.c, bli_error.c, bli_init.c, bli_memsys.c, bli_thread, and
bli_ind.c. We don't need to track initialization at the sub-API level,
especially now that BLIS can self-initialize.
- Added a critical section around the changing of the error checking
level in bli_error.c.
- Deprecated bli_ind_oper_has_avail() as well as all functions
bli_<opname>_ind_get_avail(), where <opname> is a level-3 operation
name. These functions had no use cases within BLIS and likely none
outside of BLIS.
- Commented out calls to bli_init() and bli_finalize() in testsuite's
main() function, and likewise for standalone test drivers in 'test'
directory, so that self-initialization is exercised by default.
Details:
- Fixed semi-broken testsuite Makefile and very-broken test driver Makefiles,
as well as those for test/3m4m, test/thread_ranges, and test/exec_sizes
sub-directories.
- Factored out much of the top-level Makefile into common.mk. A Makefile
needs only set DIST_PATH to the relative path to the top level of the
BLIS source distribution before including common.mk in order to acquire
all of the definitions typically needed in a Makefile that tests BLIS.
Details:
- Commented out code in frame/ind/oapi/bli_l3_3m4m1m_oapi.c that was
specifically inserted to facilitate the benchmarking of 1m block-panel
and panel-block algorithms.
- Updates to test/3m4m/Makefile, runme.sh script, and test_gemm.c to
reflect changes used/needed during benchmarking.
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:
- Relaxed the base pointer and leading dimension alignment restrictions
in the sandybridge gemm microkernels, allowing the use of vmovups/vmovupd
instead of vmovaps/vmovapd. These change mimic those made to the haswell
microkernels in e0d2fa0 and ee2c139.
- Updated testsuite modules as well as standalone test drivers in 'test'
directory to use DBL_MAX as the initial time candidate. Thanks to Devin
Matthews for suggesting this change.
- Inserted #include "float.h" into bli_system.h (to gain access to DBL_MAX).
- Minor update (vis-a-vis contexts) to driver code in test/3m4m.
Details:
- Added two new sets of [sd]gemm micro-kernels for haswell architectures,
one that is 4x24/4x12 (s and d) and one that is 6x16/6x8.
- Changed the haswell configuration to use the 6x16/6x8 micro-kernels
by default.
- Updated various Makefiles, in test, test/3m4m, and testsuite.
Details:
- Fixed typos in README.md.
- Fixed column heading alignment for testsuite when matlab output is
enabled.
- Minor updates to test/3m4m/runme.sh and test/3m4m/Makefile.
Details:
- Updated test/3m4m driver files to build test drivers that allow
comparision of real "asm_blis" results to complex "asm_blis" results,
except with the latter's problem sizes adjusted so that problems are
generated with equal flop counts.
Details:
- Added a line of output that forces matlab to allocate the entire array
up-front.
- Re-enabled real domain benchmarks in runme.sh, which were temporarily
disabled.
Details:
- Fixed incorrect number of mc_x_kc memory blocks in
sandybridge/bli_config.h.
- Enabled OpenMP multithreding in piledriver/bli_config.h.
- More updates to test/3m4m driver files.
Details:
- Enable OpenMP support by default in sandybridge's bli_config.h.
- Reorganized sandybridge's bli_kernel.h.
- Updated 3m4m Makefile, runme.sh to also test MKL implementation.
Details:
- Defined a new "3ms" (separated 3m) pack schema and added appropriate
support in packm_init(), packm_blk_var2().
- Generalized packm_struc_cxk_3mi to take the imaginary stride (is_p)
as an argument instead of computing it locally. Exception: for trmm,
is_p must be computed locally, since it changes for triangular
packed matrices. Also exposed is_p in interface to dt-specific
packm_blk_var2 (and _var1, even though it does not use imaginary
stride).
- Renamed many functions/variables from _3mi to _3mis to indicate that
they work for either interleaved or separated 3m pack schemas.
- Generalized gemm and herk macro-kernels to pass in imaginary stride
rather than compute them locally.
- Added support for 3m2 and 3m3 algorithms to frame/ind, including 3m2-
and 3m3-specific virtual micro-kernels.
- Added special gemm macro-kernels to support 3m2 and 3m3.
- Added support for 3m2 and 3m3 to testsuite.
- Corrected the type of the panel dimension (pd_) in various macro-
kernels from inc_t to dim_t.
- Renamed many functions defined in bli_blocksize.c.
- Moved most induced-related macro defs from frame/include to
frame/ind/include.
- Updated the _ukernel.c files so that the micro-kernel function pointers
are obtained from the func_t objects rather than the cpp macros that
define the function names.
- Updated test/3m4m driver, Makefile, and run script.
Details:
- Renamed all remaining 3m/4m packing files and symbols to 3mi/4mi
('i' for "interleaved"). Similar changes to 3M/4M macros.
- Renamed all 3m/4m files and functions to 3m1/4m1.
- Whitespace changes.
Details:
- Changed gemm_kc blocksizes to be reduced by two-thirds instead of
half.
- Changed 3m4m/test_gemm.c driver to divide by 3 instead of 2 when
computing the fixed k dimension.
- Fixed runme.sh so that it would use multiple threads for s/dgemm
cases.
Details:
- Added a modified test driver for [cz]gemm that will test all 3m/4m
as well as assembly-based and OpenBLAS implementations of gemm
in single and multithreaded modes.
