Details:
- Updated the top-level Makefile, build/config.mk.in template, and
configure script so that object files corresponding to source files
belonging to the BLAS compatibility layer are not compiled (or archived)
when the compatibility layer is disabled. (Same for CBLAS.) Thanks
to Devin Matthews for suggesting this optimization.
- Slight change to the way configure handles internal variables. Instead
of converting (overwriting) some, such as enable_blas2blis and
enable_cblas, from a "yes" or "no" to a "1" or "0" value, the latter are
now stored in new variables that live alongside the originals (with the
suffix "_01"). This is convenient since some values need to be
sed-substituted into the config.mk.in template, which requires "yes" or
"no", while some need to be written to the bli_config.h.in template,
which requires "0" or "1".
Options to configure have been added for:
- Setting the internal BLIS and BLAS/CBLAS integer sizes.
- Enabling and disabling the BLAS and CBLAS layers.
Additionally, configure options which require defining macros (the above plus the threading model), write their macros to the automatically-generated bli_config.h file in the top-level build directory. The old bli_config.h files in the config dirs were removed, and any kernel-related macros (SIMD size and alignment etc.) were moved to bli_kernel.h. The Makefiles were also modified to find the new bli_config.h file.
Lastly, support for OMP in clang has been added (closes#56).
Details:
- Updated the top-level Makefile so that the CFLAGS variable designated
for kernel source code is applied not only to source code in
directories named "kernels" but source code in any directory that
contains the substring "kernels", such as "ukernels".
- Formally disabled some code in gen-make-frag.sh script that was already
effectively disabled. The code was related to handling "noopt" and
"kernel" directories, which is now handled independently within the
top-level Makefile without needing to place these source files into
a spearate makefile variable.
1) Add -- options.
2) Add -d/--enable-debug option to enable debugging symbols with and without optimization.
3) Allow user to specify CC at configure time, and determine vendor (gcc/icc/etc.). For now configurations enforce a particular vendor.
4) Add make V=[0,1] option to control build verbosity.
Details:
- Added sgemm and dgemm micro-kernels, which employ 256-bit AVX vectors
and FMA instructions. (Complex support is currently provided by default
induced method, 4m1a.)
- Added a 'haswell' configuration, which uses the aforementioned kernels.
- Inserted auto-detection support for haswell configuration in
build/auto-detect/cpuid_x86.c.
- Modified configure script to explicitly echo when automatic or manual
configuration is in progress.
- Changed beta scalar in test_gemm.c module of test suite to -1.0 to 0.9.
Details:
- Updated copyright headers to include "at Austin" in the name of the
University of Texas.
- Updated the copyright years of a few headers to 2014 (from 2011 and
2012).
Details:
- Modified build system (mostly configure and top-level Makefile) so that
a user can build a BLIS library outside of the top-level directory of
the source distribution.
- Added "test" target to Makefile so that the user can run "make test",
which will compile, link, and run the testsuite binary. This works even
if the build directory is externally located, thanks to the test suite
binary's new -g and -o command-line options. Also, when creating the
test suite via the top-level Makefile, the linking is against the
local archive, in lib/<configname>, rather than at <install_prefix>/lib.
- Modified testsuite/Makefile so that it links against the library built
locally, in ../lib/<configname>.
- Added "-lm" to LDFLAGS of most configurations' make_defs.mk.
- Various other cleanups to build system.
Details:
- Added a new "special" directory type: any source code within directories
named "kernels" will be compiled with a separate CFLAGS_KERNELS set of
compiler flags. This allows the developer to specify a separate set of
flags (e.g. optimization flags) for compiling kernels while maintaining a
standard set for regular framework code.
- Fixed a bug in the top-level Makefile that was causing "noopt" code
to be compiled with the standard set of compilation flags.
- Updated make_defs.mk in reference, flame, and clarksville configurations
according to above changes.
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:
- Restored executable (0755) permissions to scripts that were touched by
the recursive sed script that updated the copyright headers in the
previous commit.
Details:
- Updated CHANGELOG.
- Added 'changelog' target to Makefile that runs 'git log --decorate' and
overwrites CHANGELOG with the output.
- Other trivial changes.
Details:
- Added build/update-version-file.sh script for auto-detecting "version"
string and updating 'version' file accordingly. (If .git directory is
not present, then it is assumed this copy of BLIS is a downloaded
release, in which case 'version' file is left unchanged.)
- Added invocation of update-version-file.sh to configure script.
