Commit Graph

7 Commits

Author SHA1 Message Date
Field G. Van Zee
b6e24b23cb Use PASTEMAC in macro-kernels (over MAC2 or MAC3).
Details:
- Replaced multi-type invocations of copys_mxn, xpbys_mxn, etc. (PASTEMAC2
  and PASTEMAC3) with those that only use a single type (PASTEMAC).
- Added extra macros to bli_adds_mxn_uplo.h and bli_xpbys_mxn_uplo.h to
  accommodate above change.
- Fixed comment typo in bli_config.h files.
- Added .nfs* pattern to .gitignore.
2013-04-25 12:06:12 -05:00
Field G. Van Zee
4fe1435f20 Updated dupl implementation to use PACKNR and NR.
Details:
- Updated frame/util/dupl/bli_dupl_unb_var1.c to utilize PACKNR and NR
  explicitly so navigate b1 so that situations where PACKNR > NR are
  supported.
- Moved the 4x2 and 4x4 reference micro-kernels in frame/3/gemm/ukernels and
  frame/3/trsm/ukernels to kernels/c99/.
- Updated clarksville and flame configurations.
2013-04-22 19:00:43 -05:00
Field G. Van Zee
b6ef84fad1 Allow ldim of packed micro-panels != MR, NR.
Details:
- Made substantial changes throughout the framework to decouple the leading
  dimension (row or column stride) used within each packed micro-panel from
  the corresponding register blocksize. It appears advantageous on some
  systems to use, for example, packed micro-panels of A where the column
  stride is greater than MR (whereas previously it was always equal to MR).
- Changes include:
  - Added BLIS_EXTEND_[MNK]R_? macros, which specify how much extra padding
    to use when packing micro-panels of A and B.
  - Adjusted all packing routines and macro-kernels to use PACKMR and PACKNR
    where appropriate, instead of MR and NR.
  - Added pd field (panel dimension) to obj_t.
  - New interface to bli_packm_cntl_obj_create().
  - Renamed bli_obj_packed_length()/_width() macros to
    bli_obj_padded_length()/_width().
  - Removed local #defines for cache/register blocksizes in level-3 *_cntl.c.
  - Print out new cache and register blocksize extensions in test suite.
- Also added new BLIS_EXTEND_[MNK]C_? macros for future use in using a larger
  blocksize for edge cases, which can improve performance at the margins.
2013-04-21 15:00:24 -05:00
Field G. Van Zee
874707c1b1 Fixed edge case handling bug in herk macrokernels.
Details:
- Fixed a bug present in bli_herk_l_ker_var2() and bli_herk_u_ker_var2() that
  only manifests when BLIS is configured such that MR != NR. The bug involves
  incorrectly detecting edge cases, which resulted in some parts of matrix C
  potentially being skipped and not updated, depending on the problem size.
- Updated the default values of MR and NR in config/reference/bli_kernel.h to
  8 and 4, respectively, so that I can better stress the framework on a
  day-to-day basis. (The fact that they were both equal to 4 for so long is
  why I did not stumble upon this bug much sooner.)
2013-04-05 17:19:43 -05:00
Field G. Van Zee
7cbda15291 Added reference microkernels for arbitrary MR, NR.
Details:
- Added a new set of reference gemm, gemmtrsm, and trsm micro-kernels that
  contain explicit loops over MR and NR, thus allowing them to be used
  unmodified by developers who want to build a reference library with
  custom register blocksizes.
- Changed config/reference/bli_kernel.h to use above ukernels by default.
- Changed interfaces of new and existing gemm, gemmtrsm, and trsm micro-kernels
  to use 'restrict' keyword.
- Added -funroll-loops option to config/reference/make_defs.mk.
- Updated comments in bli_kernel.h describing constraints on register and
  cache blocksizes.
- Updated _adds_mxn.h, _copys_mxn.h, and _xpbys_mxn.h macros files so that
  single-char macros are also defined.
2013-04-04 15:25:43 -05:00
Field G. Van Zee
37308f9a50 Align packed panel strides with system alignment.
Details:
- Pass panel strides through bli_align_dim_to_sys() to ensure that each
  subsequent packed panel of A and B begins at an aligned address. (The
  first panel is presumably aligned to system alignment because it is
  aligned to a page boundary, which is typically much larger.)
- Rearranged code in packm_init_pack() to prevent additional conditional
  blocks as a result of the aforementioned change.
- Adjusted contiguous memory allocator so that the system memory alignment
  is used to allocate enough space for each block no matter what kind of
  register blocking is used (even if register blocksize is unit and every
  row/column needs maximal padding).
- Adjusted default blocksizes in reference configuration so that MC*KC
  and KC*NC result in identical footprints for all datatypes.
2013-03-26 12:43:14 -05:00
Field G. Van Zee
b65cdc57d9 Migrated 'bl2' prefix to 'bli'.
Details:
- Changed all filename and function prefixes from 'bl2' to 'bli'.
- Changed the "blis2.h" header filename to "blis.h" and changed all
  corresponding #include statements accordingly.
- Fixed incorrect association for Fran in CREDITS file.
2013-03-24 20:01:49 -05:00