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9804adfd40
Details: - Added a new configure option, --[en|dis]able-packbuf-pools, which will enable or disable the use of internal memory pools for managing buffers used for packing. When disabled, the function specified by the cpp macro BLIS_MALLOC_POOL is called whenever a packing buffer is needed (and BLIS_FREE_POOL is called when the buffer is ready to be released, usually at the end of a loop). When enabled, which was the status quo prior to this commit, a memory pool data structure is created and managed to provide threads with packing buffers. The memory pool minimizes calls to bli_malloc_pool() (i.e., the wrapper that calls BLIS_MALLOC_POOL), but does so through a somewhat more complex mechanism that may incur additional overhead in some (but not all) situations. The new option defaults to --enable-packbuf-pools. - Removed the reinitialization of the memory pools from the level-3 front-ends and replaced it with automatic reinitialization within the pool API's implementation. This required an extra argument to bli_pool_checkout_block() in the form of a requested size, but hides the complexity entirely from BLIS. And since bli_pool_checkout_block() is only ever called within a critical section, this change fixes a potential race condition in which threads using contexts with different cache blocksizes--most likely a heterogeneous environment--can check out pool blocks that are too small for the submatrices it wishes to pack. Thanks to Nisanth Padinharepatt for reporting this potential issue. - Removed several functions in light of the relocation of pool reinit, including bli_membrk_reinit_pools(), bli_memsys_reinit(), bli_pool_reinit_if(), and bli_check_requested_block_size_for_pool(). - Updated the testsuite to print whether the memory pools are enabled or disabled.
131 lines
5.9 KiB
C
131 lines
5.9 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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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 of The University of Texas at Austin nor the names
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of its contributors may be used to endorse or promote products
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derived 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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#include "blis.h"
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// -- General library information ----------------------------------------------
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// This string gets defined via -D on the command line when BLIS is compiled.
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// This string is (or rather, should be) only used here.
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static char* bli_version_str = BLIS_VERSION_STRING;
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static char* bli_int_type_size_str = STRINGIFY_INT( BLIS_INT_TYPE_SIZE );
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char* bli_info_get_version_str( void ) { return bli_version_str; }
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char* bli_info_get_int_type_size_str( void ) { return bli_int_type_size_str; }
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// -- General configuration-related --------------------------------------------
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gint_t bli_info_get_int_type_size( void ) { return BLIS_INT_TYPE_SIZE; }
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gint_t bli_info_get_num_fp_types( void ) { return BLIS_NUM_FP_TYPES; }
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gint_t bli_info_get_max_type_size( void ) { return BLIS_MAX_TYPE_SIZE; }
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gint_t bli_info_get_page_size( void ) { return BLIS_PAGE_SIZE; }
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gint_t bli_info_get_simd_num_registers( void ) { return BLIS_SIMD_NUM_REGISTERS; }
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gint_t bli_info_get_simd_size( void ) { return BLIS_SIMD_SIZE; }
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gint_t bli_info_get_simd_align_size( void ) { return BLIS_SIMD_ALIGN_SIZE; }
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gint_t bli_info_get_stack_buf_max_size( void ) { return BLIS_STACK_BUF_MAX_SIZE; }
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gint_t bli_info_get_stack_buf_align_size( void ) { return BLIS_STACK_BUF_ALIGN_SIZE; }
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gint_t bli_info_get_heap_addr_align_size( void ) { return BLIS_HEAP_ADDR_ALIGN_SIZE; }
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gint_t bli_info_get_heap_stride_align_size( void ) { return BLIS_HEAP_STRIDE_ALIGN_SIZE; }
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gint_t bli_info_get_pool_addr_align_size( void ) { return BLIS_POOL_ADDR_ALIGN_SIZE; }
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gint_t bli_info_get_enable_stay_auto_init( void )
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{
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#ifdef BLIS_ENABLE_STAY_AUTO_INITIALIZED
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return 1;
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#else
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return 0;
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#endif
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}
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gint_t bli_info_get_enable_blas2blis( void )
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{
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#ifdef BLIS_ENABLE_BLAS2BLIS
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return 1;
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#else
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return 0;
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#endif
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}
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gint_t bli_info_get_enable_cblas( void )
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{
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#ifdef BLIS_ENABLE_CBLAS
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return 1;
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#else
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return 0;
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#endif
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}
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gint_t bli_info_get_blas2blis_int_type_size( void ) { return BLIS_BLAS2BLIS_INT_TYPE_SIZE; }
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gint_t bli_info_get_enable_packbuf_pools( void )
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{
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#ifdef BLIS_ENABLE_PACKBUF_POOLS
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return 1;
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#else
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return 0;
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#endif
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}
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// -- Kernel implementation-related --------------------------------------------
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// -- Level-3 kernel definitions --
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char* bli_info_get_gemm_ukr_impl_string( ind_t method, num_t dt )
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{ bli_init_once(); return bli_gks_l3_ukr_impl_string( BLIS_GEMM_UKR, method, dt ); }
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char* bli_info_get_gemmtrsm_l_ukr_impl_string( ind_t method, num_t dt )
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{ bli_init_once(); return bli_gks_l3_ukr_impl_string( BLIS_GEMMTRSM_L_UKR, method, dt ); }
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char* bli_info_get_gemmtrsm_u_ukr_impl_string( ind_t method, num_t dt )
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{ bli_init_once(); return bli_gks_l3_ukr_impl_string( BLIS_GEMMTRSM_U_UKR, method, dt ); }
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char* bli_info_get_trsm_l_ukr_impl_string( ind_t method, num_t dt )
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{ bli_init_once(); return bli_gks_l3_ukr_impl_string( BLIS_TRSM_L_UKR, method, dt ); }
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char* bli_info_get_trsm_u_ukr_impl_string( ind_t method, num_t dt )
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{ bli_init_once(); return bli_gks_l3_ukr_impl_string( BLIS_TRSM_U_UKR, method, dt ); }
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// -- BLIS implementation query (level-3) --------------------------------------
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char* bli_info_get_gemm_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_GEMM, dt ); }
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char* bli_info_get_hemm_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_HEMM, dt ); }
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char* bli_info_get_herk_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_HERK, dt ); }
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char* bli_info_get_her2k_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_HER2K, dt ); }
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char* bli_info_get_symm_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_SYMM, dt ); }
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char* bli_info_get_syrk_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_SYRK, dt ); }
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char* bli_info_get_syr2k_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_SYR2K, dt ); }
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char* bli_info_get_trmm_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_TRMM, dt ); }
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char* bli_info_get_trmm3_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_TRMM3, dt ); }
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char* bli_info_get_trsm_impl_string( num_t dt ) { return bli_ind_oper_get_avail_impl_string( BLIS_TRSM, dt ); }
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