Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Mon Feb 11 13:20:44 2013 -0600
Added unified test suite, and many fixes.
Details:
- Added a highly configurable, unified test suite.
- Removed DUPB configuration constant from bl2_kernel.h and macro-kernel
header files. Now, instead, DUPB is computed as (NDUP != 1) within each
macro-kernel. This fixes a bug in trmm/trsm whereby bp was indexed into
incorrectly when DUPB was set to FALSE but the NDUP was still non-unit.
By encoding both pieces of information into one constant in _kernel.h,
it seems somewhat less likely others will encounter this bug in the
future.
- Added level-2 cache blocksizes to _kernel.h for reference configuration,
and defined blocksizes in _cntl.c files to these default values.
- Changed semantics of her2k and syr2k such that these operations no longer
expect the B matrix to already be conjugate-transposed (or just transposed
for syr2k). However, these semantics are preserved for the internal
mechanics of the implementations, including the internal back-end and all
blocked variants.
- Inserted checks for real-valued alpha and beta for herk/her2k and herk,
respectively.
- Relaxed general object structure constraints in _basic_check() for gemv, ger.
- Changed her front-end to NOT copy-cast to real projection; instead, this is
replaced by selecting either the real part or both parts within the unblocked
algorithm implementation, depending on the value of conjh.
- Added conjh to all _check routines for her so that the code knows when to
verify that alpha has an imaginary component equal to zero (for her, but
not syr).
- Changed control tree for her to forgo packing.
- Added unit diagonal support to fnormm.
- Redefined real versions of abval2s macros in terms of fabs(), fabsf().
- Redefined complex versions of sqrt2s macros using the actual "complex square
root" formula.
- Created new level-0 object-based routines, suffixed with "sc" (for "scalar").
- Defined new level-1v, -1d, and -1m versions of add and sub operations
(two-operand add and subtract).
- Added new scalar macros:
- getris: acquire real and imaginary components.
- setris: set real and imaginary components.
- addjs: addition with conjugated x.
- subjs: subtraction with conjugated x.
- Defined new utility operations:
- absumv: element-wise sum of absolute values for vector elements.
- absumm: element-wise sum of absolute values for matrix elements.
- mkherm: convert existing matrix to Hermitian.
- mksymm: convert existing matrix to symmetric.
- mktrim: convert existing matrix to triangular.
- Added various error checking routines.
- Added bl2_clock_min_diff(), which is used to more cleanly measure the
wall clock time of a code block.
- Added general stride support to bl2_obj_alloc_buffer().
- Added bl2_obj_init_scalar().
- Updated parameter mapping in bl2_param_map.c.
- Added support for queriable version string.
- Fixed a bug in the her2k macro-kernels (which currently are simply
implemented in terms of two invocations of herk) whereby beta was being
applied to both the first and second rank-k updates, rather than only
the first.
- Fixed a bug in trmm/trsm whereby transpose and right side cases were not
properly implemented due to erroneous assumptions regarding aliasing and
root objects.
- Fixed a bug in the upper triangular trsm macro-kernel in which the wrong
MR x NR block of B was being updated.
- Fixed a bug in the inverts macro in the double real case whereby the
value was typecast to float before inversion. This affected non-unit cases
of dtrsm.
- Fixed a bug in the reference kernels for gemmtrsm whereby the minus one
constant was being applied incorrectly.
- Fixed a bug in the overall treatment of non-unit alpha for trsm. The code
now mimics the rank-k strategy of gemm, whereby alpah is applied during
the first iteration of variant 3, with BLIS_ONE passed in instead for
subsequent iterations. This also required passing alpha into the macro-
kernels as well as the fused gemmtrsm micro-kernels.
- Fixed a bug in trsm_u_blk_var1 whereby the gemm macro-kernel was being
called for blocks strictly above the diagonal. While this sounds good in
theory, this cannot be done because gemm_ker_var2 expects row panels of
A to be packed from top to bottom, while for trsm_u, A is actually packed
from bottom to top due to the reverse (BR->TL) nature of the algorithm.
- Fixed a bug in packm_cxk() whereby panel packings with unit panel
dimensions were mishandled due to incorrect arguments to the copyv kernel.
Also changed the copyv kernel invocation to scal2v so that these edge
cases are properly handled when scaling is requested.
- Fixed a bug in packv_int() whereby an uninitialized object is passed in
instead of the source object.
- Fixed a bug whereby level-2 code could allocate memory dynamically via
bl2_malloc() and then attempt to free it via bl2_mm_release(). Also fixed
a potential future bug whereby a mem_t object that is actually no longer
"allocated" from the static pool is mistaken for being allocated due to
failure to NULLify the buffer when the block was most recently released.
- Fixed a bug in bl2_acquire_mpart_*() whreby the uplo field was mistakenly
toggled when the requested subpartition needed to be "reflected" due to it
residing in an unstored region.
commit be94fb84c0351602d7585269f29998e3bf83f899
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Fri Jan 4 10:55:21 2013 -0600
Added missing 'd' to fused gemmtrsm function name.
commit 879a179e1dee36f0c56765f2ab91a26861019b34
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Fri Jan 4 10:37:27 2013 -0600
Added debug statements to bl2_mm_acquire_m().
Details:
- Added printf() statements to bl2_mm_acquire_m() to help debug issues
with prematurely exhausted memory pool.
- Removed 'd' from kernel names of reference kernels in clarksville
configuration's bl2_kernel.h
commit 806e74beb4eafeef620a555ffbb3f6779e29c7b6
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Thu Dec 20 17:07:50 2012 -0600
Defined Frobenius norm operations.
Details:
- Added level-0 grabis macro operation to grab imaginary component of one
variable and copy it to the real component of another variable.
- Defined sumsqv operation, which computes the sum of the absolute squares
of the elements of a vector. This implementation is modeled after ?lassq
in netlib LAPACK.
- Defined fnormv and fnormm operations, which compute the Frobenius norm on
vectors and matrices, respectively. These operations are treated as one-
operand operations where the output norm value is the real projection of
the datatype of the input operand. Both operations are implemented in terms
of sumsqv.
commit 66e80ce1aec099b2b2b0c4f295e38add2c921383
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Thu Dec 20 17:02:55 2012 -0600
Added GENT*R macros; tweaked bl2_machval defs.
Details:
- Added function and prototype macro-generating macros for GENTFUNCR and
GENTPROTR, which are one-operand macros with auxiliary real projection
types.
- Tweaked bl2_machval files to use new macros.
commit 2fecc88ca22142020573f168da715e8e9f3dd7de
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Thu Dec 20 11:35:14 2012 -0600
Fixed harmless macro bug in level-1m operations.
Details:
- Fixed some inconsistent usage of n_iter_max and n_iter in the two
bl2_set_dims_incs_uplo_[12]m macros. The right thing ended up happening
despite the bug, which is why I had not discovered it until now.
commit 8945db6ec9f82168cf72411ad408b4fdb44ae0d1
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Tue Dec 18 15:07:36 2012 -0600
Renamed x86,x86_64 kernels to indicate 'd' fusing.
Details:
- Renamed x86 and x86_64 kernels to contain a 'd' before the fusing shape
to emphasize that the fusing shape is not for all datatype instances, but
rather just for one (that of double-precision real). Other fusing shapes
would be proportional to their precision and domain "byte footprints".
- Corresponding changes to config/clarksville/bl2_kernel.h.
commit 6fbbdd4e194d06096ad08c5db61127be338067db
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Tue Dec 18 14:34:02 2012 -0600
More tweaks to _config.h, _kernel.h; smem tweaks.
Details:
- Moved kernel-related definitions form bl2_config.h to bl2_kernel.h.
- Replaced define of _GNU_SOURCE with define of _POSIX_C_SOURCE. This
accomplishes the same thing (enabling posix_memalign()) without enabling
all of the GNU extensions we don't need.
- Defined the size of the static memory pool in terms of MC, KC, and NC,
as well as two new constants that determine how many MCxKC blocks and
how many KCxNC blocks should be allocated (defined in bl2_config.h).
- In the case of static memory pool exhaustion, replaced the generic
bl2_abort() with a specific error code call.
commit 5d8bdb21c48e8fb11bef6128a242122cc1470a99
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Mon Dec 17 16:07:36 2012 -0600
Minor reordering of bl2_config.h definitions.
commit 4a83f67490136a898f558e273b76a687aed8b893
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Mon Dec 17 12:35:54 2012 -0600
Consolidated configuration headers.
Details:
- Merged contents of bl2_arch.h into bl2_config.h for reference and
clarksville configurations.
- Updated CREDITS, INSTALL, LICENSE, README files.
commit 0670c33cc14612f636ef09ede4133404ae0af6ba
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Fri Dec 14 12:45:26 2012 -0600
Fixed bug in reference gemm ukernels.
Details:
- Fixed a bug whereby, for the reference gemm ukernels, the matrix product
was not correctly accumulated and scaled (by alpha) into the output matrix
C. (Thanks to Fran for finding this bug.)
- Whitespace changes to reference trsm kernels.
commit e2e7cb2fbe615be4d375bc2dce88d03d98fadc9e
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Thu Dec 13 18:17:54 2012 -0600
Expanded reference packm/unpackm kernel set to 16.
Details:
- Added 10xk, 12xk, 14xk, and 16xk reference kernels for packm and
unpackm.
- Updated bl2_[un]packm_cxk() to silently use scal2m if "out of range"
kernel size is requested. (Thanks to Tyler for finding this bug.)
- Updated bl2_kernel.h to contain new _KERNEL definitions, according
to above changes, for 'reference' and 'clarksville' configurations.
- Updated CHANGELOG.
- Removed "output*.m" from .gitignore.
commit 17455a8bce038dd570356ab0c5c11d9a89f20248
Author: Field G. Van Zee <fieldcs.utexas.edu>
Date: Mon Dec 10 17:23:32 2012 -0600
Minor updates towards to 0.0.1.