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2a0682f8e5
Details: - Implemented support for the user manually overriding the automatic subconfiguration selection that happens at runtime. This override can be requested by setting the BLIS_ARCH_TYPE environment variable. The variable must be set to the arch_t id (as enumerated in bli_type_defs.h) corresponding to the desired subconfiguration. If a value outside this enumerated range is given, BLIS will abort with an error message. If the value is in the valid range but corresponds to a subconfiguration that was not activated at configure-time/compile-time, BLIS will abort with a (different) error message. Thanks to decandia50 for suggesting this feature via issue #451. - Defined a new function bli_gks_lookup_id to return the address of an internal data structure within the gks. If this address is NULL, then it indicates that the subconfig corresponding to the arch_t id passed into the function was not compiled into BLIS. This function is used in the second of the two abort scenarios described above. - Defined the enumerated error code BLIS_UNINITIALIZED_GKS_CNTX, which is returned for the latter of the two abort scenarios mentioned above, along with a corresponding error message and a function to perform the error check. - Added cpp macro branching to bli_env.c to support compilation of the auto-detect.x executable during configure-time. This cpp branch is similar to the cpp code already found in bli_arch.c and bli_cpuid.c. - Cleaned up the auto_detect() function to facilitate easier maintenance going forward. Also added a convenient debug switch that outputs the compilation command for the auto-detect.x executable and exits.
104 lines
3.4 KiB
C
104 lines
3.4 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) 2018, 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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#ifdef BLIS_CONFIGURETIME_CPUID
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#define BLIS_INLINE static
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#define BLIS_EXPORT_BLIS
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#include "bli_system.h"
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#include "bli_type_defs.h"
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#include "bli_env.h"
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#else
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#include "blis.h"
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#endif
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// -----------------------------------------------------------------------------
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gint_t bli_env_get_var( const char* env, gint_t fallback )
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{
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gint_t r_val;
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char* str;
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// Query the environment variable and store the result in str.
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str = getenv( env );
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// Set the return value based on the string obtained from getenv().
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if ( str != NULL )
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{
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// If there was no error, convert the string to an integer and
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// prepare to return that integer.
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r_val = ( gint_t )strtol( str, NULL, 10 );
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}
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else
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{
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// If there was an error, use the "fallback" as the return value.
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r_val = fallback;
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}
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return r_val;
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}
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#if 0
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void bli_env_set_var( const char* env, dim_t value )
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{
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dim_t r_val;
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char value_str[32];
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const char* fs_32 = "%u";
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const char* fs_64 = "%lu";
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// Convert the string to an integer, but vary the format specifier
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// depending on the integer type size.
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if ( bli_info_get_int_type_size() == 32 ) sprintf( value_str, fs_32, value );
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else sprintf( value_str, fs_64, value );
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// Set the environment variable using the string we just wrote to via
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// sprintf(). (The 'TRUE' argument means we want to overwrite the current
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// value if the environment variable already exists.)
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r_val = bli_setenv( env, value_str, TRUE );
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// Check the return value in case something went horribly wrong.
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if ( r_val == -1 )
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{
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char err_str[128];
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// Query the human-readable error string corresponding to errno.
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strerror_r( errno, err_str, 128 );
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// Print the error message.
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bli_print_msg( err_str, __FILE__, __LINE__ );
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}
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}
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#endif
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