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1a284828d1
Details: - Added multithreading support to the sup framework (via either OpenMP or pthreads). Both variants 1n and 2m now have the appropriate threading infrastructure, including data partitioning logic, to parallelize computation. This support handles all four combinations of packing on matrices A and B (neither, A only, B only, or both). This implementation tries to be a little smarter when automatic threading is requested (e.g. via BLIS_NUM_THREADS) in that it will recalculate the factorization in units of micropanels (rather than using the raw dimensions) in bli_l3_sup_int.c, when the final problem shape is known and after threads have already been spawned. - Implemented bli_?packm_sup_var2(), which packs to conventional row- or column-stored matrices. (This is used for the rrc and crc storage cases.) Previously, copym was used, but that would no longer suffice because it could not be parallelized. - Minor reorganization of packing-related sup functions. Specifically, bli_packm_sup_init_mem_[ab]() are called from within packm_sup_[ab]() instead of from the variant functions. This has the effect of making the variant functions more readable. - Added additional bli_thrinfo_set_*() static functions to bli_thrinfo.h and inserted usage of these functions within bli_thrinfo_init(), which previously was accessing thrinfo_t fields via the -> operator. - Renamed bli_partition_2x2() to bli_thread_partition_2x2(). - Added an auto_factor field to the rntm_t struct in order to track whether automatic thread factorization was originally requested. - Added new test drivers in test/supmt that perform multithreaded sup tests, as well as appropriate octave/matlab scripts to plot the resulting output files. - Added additional language to docs/Multithreading.md to make it clear that specifying any BLIS_*_NT variable, even if it is set to 1, will be considered manual specification for the purposes of determining whether to auto-factorize via BLIS_NUM_THREADS. - Minor comment updates. AMD-Internal: [CPUPL-713] Change-Id: I9536648e7befac4d2dc17805e44ef34470961662
251 lines
7.9 KiB
C
251 lines
7.9 KiB
C
/*
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BLIS
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An object-based framework for developing high-performance BLAS-like
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libraries.
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Copyright (C) 2014, The University of Texas at Austin
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Copyright (C) 2020, Advanced Micro Devices, Inc.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name(s) of the copyright holder(s) nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef BLIS_KERNEL_MACRO_DEFS_H
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#define BLIS_KERNEL_MACRO_DEFS_H
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// -- Define default threading parameters --------------------------------------
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// -- Conventional (large code path) values --
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#ifndef BLIS_THREAD_RATIO_M
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#define BLIS_THREAD_RATIO_M 2
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#endif
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#ifndef BLIS_THREAD_RATIO_N
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#define BLIS_THREAD_RATIO_N 1
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#endif
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#ifndef BLIS_THREAD_MAX_IR
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#define BLIS_THREAD_MAX_IR 1
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#endif
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#ifndef BLIS_THREAD_MAX_JR
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#define BLIS_THREAD_MAX_JR 4
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#endif
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#if 0
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// -- Skinny/small possibly-unpacked (sup code path) values --
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#ifndef BLIS_THREAD_SUP_RATIO_M
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#define BLIS_THREAD_SUP_RATIO_M 1
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#endif
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#ifndef BLIS_THREAD_SUP_RATIO_N
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#define BLIS_THREAD_SUP_RATIO_N 2
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#endif
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#ifndef BLIS_THREAD_SUP_MAX_IR
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#define BLIS_THREAD_SUP_MAX_IR 1
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#endif
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#ifndef BLIS_THREAD_SUP_MAX_JR
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#define BLIS_THREAD_SUP_MAX_JR 8
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#endif
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#endif
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// -- Memory allocation --------------------------------------------------------
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// hbwmalloc.h provides hbw_malloc() and hbw_free() on systems with
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// libmemkind. But disable use of libmemkind if BLIS_DISABLE_MEMKIND
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// was explicitly defined.
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#ifdef BLIS_DISABLE_MEMKIND
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#undef BLIS_ENABLE_MEMKIND
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#endif
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#ifdef BLIS_ENABLE_MEMKIND
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#include <hbwmalloc.h>
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#endif
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// Memory allocation functions. These macros define the three types of
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// malloc()-style functions, and their free() counterparts: one for each
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// type of memory to be allocated.
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// NOTE: ANY ALTERNATIVE TO malloc()/free() USED FOR ANY OF THE FOLLOWING
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// THREE PAIRS OF MACROS MUST USE THE SAME FUNCTION PROTOTYPE AS malloc()
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// and free():
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//
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// void* malloc( size_t size );
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// void free( void* p );
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//
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// This allocation function is called to allocate memory for blocks within
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// BLIS's internal memory pools.
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#ifndef BLIS_MALLOC_POOL
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// If use of libmemkind was enabled at configure-time, the default
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// memory allocation function for memory pools should be hbw_malloc()
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// instead of malloc().
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#ifdef BLIS_ENABLE_MEMKIND
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#define BLIS_MALLOC_POOL hbw_malloc
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#else
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#define BLIS_MALLOC_POOL malloc
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#endif
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#endif
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#ifndef BLIS_FREE_POOL
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// If use of libmemkind was enabled at configure-time, the default
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// memory deallocation function for memory pools should be hbw_free()
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// instead of free().
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#ifdef BLIS_ENABLE_MEMKIND
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#define BLIS_FREE_POOL hbw_free
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#else
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#define BLIS_FREE_POOL free
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#endif
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#endif
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// This allocation function is called to allocate memory for internally-
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// used objects and structures, such as control tree nodes.
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#ifndef BLIS_MALLOC_INTL
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#define BLIS_MALLOC_INTL malloc
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#endif
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#ifndef BLIS_FREE_INTL
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#define BLIS_FREE_INTL free
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#endif
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// This allocation function is called to allocate memory for objects
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// created by user-level API functions, such as bli_obj_create().
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#ifndef BLIS_MALLOC_USER
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#define BLIS_MALLOC_USER malloc
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#endif
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#ifndef BLIS_FREE_USER
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#define BLIS_FREE_USER free
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#endif
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// -- Other system-related definitions -----------------------------------------
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// Size of a virtual memory page. This is used to align blocks within the
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// memory pools.
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#ifndef BLIS_PAGE_SIZE
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#define BLIS_PAGE_SIZE 4096
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#endif
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// The maximum number of named SIMD vector registers available for use.
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// When configuring with umbrella configuration families, this should be
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// set to the maximum number of registers across all sub-configurations in
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// the family.
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#ifndef BLIS_SIMD_NUM_REGISTERS
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#define BLIS_SIMD_NUM_REGISTERS 32
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#endif
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// The maximum size (in bytes) of each SIMD vector.
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// When configuring with umbrella configuration families, this should be
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// set to the maximum SIMD size across all sub-configurations in the family.
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#ifndef BLIS_SIMD_SIZE
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#define BLIS_SIMD_SIZE 64
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#endif
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// Alignment size (in bytes) needed by the instruction set for aligned
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// SIMD/vector instructions.
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#ifndef BLIS_SIMD_ALIGN_SIZE
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#define BLIS_SIMD_ALIGN_SIZE BLIS_SIMD_SIZE
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#endif
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// The maximum size in bytes of local stack buffers within macro-kernel
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// functions. These buffers are usually used to store a temporary copy
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// of a single microtile. The reason we multiply by 2 is to handle induced
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// methods, where we use real domain register blocksizes in units of
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// complex elements. Specifically, the macro-kernels will need this larger
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// micro-tile footprint, even though the virtual micro-kernels will only
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// ever be writing to half (real or imaginary part) at a time.
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#ifndef BLIS_STACK_BUF_MAX_SIZE
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#define BLIS_STACK_BUF_MAX_SIZE ( BLIS_SIMD_NUM_REGISTERS * \
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BLIS_SIMD_SIZE * 2 )
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#endif
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// Alignment size used to align local stack buffers within macro-kernel
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// functions.
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#ifndef BLIS_STACK_BUF_ALIGN_SIZE
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#define BLIS_STACK_BUF_ALIGN_SIZE BLIS_SIMD_ALIGN_SIZE
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#endif
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// Alignment size used when allocating memory via BLIS_MALLOC_USER.
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// To disable heap alignment, set this to 1.
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#ifndef BLIS_HEAP_ADDR_ALIGN_SIZE
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#define BLIS_HEAP_ADDR_ALIGN_SIZE BLIS_SIMD_ALIGN_SIZE
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#endif
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// Alignment size used when sizing leading dimensions of memory allocated
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// via BLIS_MALLOC_USER.
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#ifndef BLIS_HEAP_STRIDE_ALIGN_SIZE
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#define BLIS_HEAP_STRIDE_ALIGN_SIZE BLIS_SIMD_ALIGN_SIZE
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#endif
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// Alignment sizes used when allocating blocks to the internal memory
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// pool, via BLIS_MALLOC_POOL.
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#ifndef BLIS_POOL_ADDR_ALIGN_SIZE_A
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#define BLIS_POOL_ADDR_ALIGN_SIZE_A BLIS_PAGE_SIZE
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#endif
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#ifndef BLIS_POOL_ADDR_ALIGN_SIZE_B
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#define BLIS_POOL_ADDR_ALIGN_SIZE_B BLIS_PAGE_SIZE
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#endif
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#ifndef BLIS_POOL_ADDR_ALIGN_SIZE_C
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#define BLIS_POOL_ADDR_ALIGN_SIZE_C BLIS_PAGE_SIZE
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#endif
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#ifndef BLIS_POOL_ADDR_ALIGN_SIZE_GEN
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#define BLIS_POOL_ADDR_ALIGN_SIZE_GEN BLIS_PAGE_SIZE
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#endif
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// Offsets from alignment specified by BLIS_POOL_ADDR_ALIGN_SIZE_*.
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#ifndef BLIS_POOL_ADDR_OFFSET_SIZE_A
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#define BLIS_POOL_ADDR_OFFSET_SIZE_A 0
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#endif
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#ifndef BLIS_POOL_ADDR_OFFSET_SIZE_B
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#define BLIS_POOL_ADDR_OFFSET_SIZE_B 0
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#endif
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#ifndef BLIS_POOL_ADDR_OFFSET_SIZE_C
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#define BLIS_POOL_ADDR_OFFSET_SIZE_C 0
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#endif
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#ifndef BLIS_POOL_ADDR_OFFSET_SIZE_GEN
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#define BLIS_POOL_ADDR_OFFSET_SIZE_GEN 0
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#endif
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#ifdef AOCL_BLIS_ZEN
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#define TRSM_BLKSZ_FUNC bli_cntx_get_trsm_blksz
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#else
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#define TRSM_BLKSZ_FUNC bli_cntx_get_blksz
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#endif
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#endif
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