Files
blis/testsuite/src/test_gemm.c
Field G. Van Zee e9da6425e2 Allow use of 1m with mixing of row/col-pref ukrs.
Details:
- Fixed a bug that broke the use of 1m for dcomplex when the single-
  precision real and double-precision real ukernels had opposing I/O
  preferences (row-preferential sgemm ukernel + column-preferential
  dgemm ukernel, or vice versa). The fix involved adjusting the API
  to bli_cntx_set_ind_blkszs() so that the induced method context init
  function (e.g., bli_cntx_init_<subconfig>_ind()) could call that
  function for only one datatype at a time. This allowed the blocksize
  scaling (which varies depending on whether we're doing 1m_r or 1m_c)
  to happen on a per-datatype basis. This fixes issue #557. Thanks to
  Devin Matthews and RuQing Xu for helping discover and report this bug.
- The aforementioned 1m fix required moving the 1m_r/1m_c logic from
  bli_cntx_ref.c into a new function, bli_l3_set_schemas(), which is
  called from each level-3 _front() function. The pack_t schemas in the
  cntx_t were also removed entirely, along with the associated accessor
  functions. This in turn required updating the trsm1m-related virtual
  ukernels to read the pack schema for B from the auxinfo_t struct
  rather than the context. This also required slight tweaks to
  bli_gemm_md.c.
- Repositioned the logic for transposing the operation to accommodate
  the microkernel IO preference. This mostly only affects gemm. Thanks
  to Devin Matthews for his help with this.
- Updated dpackm pack ukernels in the 'armsve' kernel set to avoid
  querying pack_t schemas from the context.
- Removed the num_t dt argument from the ind_cntx_init_ft type defined
  in bli_gks.c. The context initialization functions for induced methods
  were previously passed a dt argument, but I can no longer figure out
  *why* they were passed this value. To reduce confusion, I've removed
  the dt argument (including also from the function defintion +
  prototype).
- Commented out setting of cntx_t schemas in bli_cntx_ind_stage.c. This
  breaks high-leve implementations of 3m and 4m, but this is okay since
  those implementations will be removed very soon.
- Removed some older blocks of preprocessor-disabled code.
- Comment update to test_libblis.c.
2021-10-13 14:15:38 -05:00

701 lines
19 KiB
C

/*
BLIS
An object-based framework for developing high-performance BLAS-like
libraries.
Copyright (C) 2014, The University of Texas at Austin
Copyright (C) 2018 - 2019, Advanced Micro Devices, Inc.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name(s) of the copyright holder(s) nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "blis.h"
#include "test_libblis.h"
// Static variables.
static char* op_str = "gemm";
static char* o_types = "mmm"; // a b c
static char* p_types = "hh"; // transa transb
static thresh_t thresh[BLIS_NUM_FP_TYPES] = { { 1e-04, 1e-05 }, // warn, pass for s
{ 1e-04, 1e-05 }, // warn, pass for c
{ 1e-13, 1e-14 }, // warn, pass for d
{ 1e-13, 1e-14 } }; // warn, pass for z
// Local prototypes.
void libblis_test_gemm_deps
(
thread_data_t* tdata,
test_params_t* params,
test_op_t* op
);
void libblis_test_gemm_experiment
(
test_params_t* params,
test_op_t* op,
iface_t iface,
char* dc_str,
char* pc_str,
char* sc_str,
unsigned int p_cur,
double* perf,
double* resid
);
void libblis_test_gemm_md
(
test_params_t* params,
test_op_t* op,
iface_t iface,
char* dc_str,
char* pc_str,
char* sc_str,
unsigned int p_cur,
double* perf,
double* resid
);
void libblis_test_gemm_impl
(
iface_t iface,
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c
);
void libblis_test_gemm_check
(
test_params_t* params,
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c,
obj_t* c_orig,
double* resid
);
void libblis_test_gemm_md_check
(
test_params_t* params,
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c,
obj_t* c_orig,
double* resid
);
double libblis_test_gemm_flops
(
obj_t* a,
obj_t* b,
obj_t* c
);
void libblis_test_gemm_deps
(
thread_data_t* tdata,
test_params_t* params,
test_op_t* op
)
{
libblis_test_randv( tdata, params, &(op->ops->randv) );
libblis_test_randm( tdata, params, &(op->ops->randm) );
libblis_test_setv( tdata, params, &(op->ops->setv) );
libblis_test_normfv( tdata, params, &(op->ops->normfv) );
libblis_test_subv( tdata, params, &(op->ops->subv) );
libblis_test_scalv( tdata, params, &(op->ops->scalv) );
libblis_test_copym( tdata, params, &(op->ops->copym) );
libblis_test_scalm( tdata, params, &(op->ops->scalm) );
libblis_test_gemv( tdata, params, &(op->ops->gemv) );
}
void libblis_test_gemm
(
thread_data_t* tdata,
test_params_t* params,
test_op_t* op
)
{
// Return early if this test has already been done.
if ( libblis_test_op_is_done( op ) ) return;
// Return early if operation is disabled.
if ( libblis_test_op_is_disabled( op ) ||
libblis_test_l3_is_disabled( op ) ) return;
// Call dependencies first.
if ( TRUE ) libblis_test_gemm_deps( tdata, params, op );
// Execute the test driver for each implementation requested.
//if ( op->front_seq == ENABLE )
{
libblis_test_op_driver( tdata,
params,
op,
BLIS_TEST_SEQ_FRONT_END,
op_str,
p_types,
o_types,
thresh,
libblis_test_gemm_experiment );
}
}
void libblis_test_gemm_experiment
(
test_params_t* params,
test_op_t* op,
iface_t iface,
char* dc_str,
char* pc_str,
char* sc_str,
unsigned int p_cur,
double* perf,
double* resid
)
{
unsigned int n_repeats = params->n_repeats;
unsigned int i;
double time_min = DBL_MAX;
double time;
num_t datatype;
dim_t m, n, k;
trans_t transa;
trans_t transb;
obj_t alpha, a, b, beta, c;
obj_t c_save;
// Use a different function to handle mixed datatypes.
if ( params->mixed_domain || params->mixed_precision )
{
libblis_test_gemm_md( params, op, iface,
dc_str, pc_str, sc_str,
p_cur, perf, resid );
return;
}
// Use the datatype of the first char in the datatype combination string.
bli_param_map_char_to_blis_dt( dc_str[0], &datatype );
// Map the dimension specifier to actual dimensions.
m = libblis_test_get_dim_from_prob_size( op->dim_spec[0], p_cur );
n = libblis_test_get_dim_from_prob_size( op->dim_spec[1], p_cur );
k = libblis_test_get_dim_from_prob_size( op->dim_spec[2], p_cur );
// Map parameter characters to BLIS constants.
bli_param_map_char_to_blis_trans( pc_str[0], &transa );
bli_param_map_char_to_blis_trans( pc_str[1], &transb );
// Create test scalars.
bli_obj_scalar_init_detached( datatype, &alpha );
bli_obj_scalar_init_detached( datatype, &beta );
// Create test operands (vectors and/or matrices).
libblis_test_mobj_create( params, datatype, transa,
sc_str[1], m, k, &a );
libblis_test_mobj_create( params, datatype, transb,
sc_str[2], k, n, &b );
libblis_test_mobj_create( params, datatype, BLIS_NO_TRANSPOSE,
sc_str[0], m, n, &c );
libblis_test_mobj_create( params, datatype, BLIS_NO_TRANSPOSE,
sc_str[0], m, n, &c_save );
// Set alpha and beta.
if ( bli_obj_is_real( &c ) )
{
bli_setsc( 1.2, 0.0, &alpha );
bli_setsc( 0.9, 0.0, &beta );
}
else
{
bli_setsc( 1.2, 0.8, &alpha );
bli_setsc( 0.9, 1.0, &beta );
}
#if 0
//bli_setm( &BLIS_ONE, &a );
bli_setsc( 1.0, 0.0, &alpha );
bli_setsc( 1.0, 0.0, &beta );
#endif
// Randomize A, B, and C, and save C.
libblis_test_mobj_randomize( params, TRUE, &a );
libblis_test_mobj_randomize( params, TRUE, &b );
libblis_test_mobj_randomize( params, TRUE, &c );
bli_copym( &c, &c_save );
// Apply the parameters.
bli_obj_set_conjtrans( transa, &a );
bli_obj_set_conjtrans( transb, &b );
// Repeat the experiment n_repeats times and record results.
for ( i = 0; i < n_repeats; ++i )
{
bli_copym( &c_save, &c );
time = bli_clock();
libblis_test_gemm_impl( iface, &alpha, &a, &b, &beta, &c );
time_min = bli_clock_min_diff( time_min, time );
}
// Estimate the performance of the best experiment repeat.
*perf = ( 2.0 * m * n * k ) / time_min / FLOPS_PER_UNIT_PERF;
if ( bli_obj_is_complex( &c ) ) *perf *= 4.0;
// Perform checks.
libblis_test_gemm_check( params, &alpha, &a, &b, &beta, &c, &c_save, resid );
// Zero out performance and residual if output matrix is empty.
libblis_test_check_empty_problem( &c, perf, resid );
// Free the test objects.
bli_obj_free( &a );
bli_obj_free( &b );
bli_obj_free( &c );
bli_obj_free( &c_save );
}
void libblis_test_gemm_md
(
test_params_t* params,
test_op_t* op,
iface_t iface,
char* dc_str,
char* pc_str,
char* sc_str,
unsigned int p_cur,
double* perf,
double* resid
)
{
unsigned int n_repeats = params->n_repeats;
unsigned int i;
double time_min = DBL_MAX;
double time;
num_t dt_a, dt_b, dt_c;
num_t dt_complex;
dim_t m, n, k;
trans_t transa;
trans_t transb;
obj_t alpha, a, b, beta, c;
obj_t c_save;
// Decode the datatype combination string.
bli_param_map_char_to_blis_dt( dc_str[0], &dt_c );
bli_param_map_char_to_blis_dt( dc_str[1], &dt_a );
bli_param_map_char_to_blis_dt( dc_str[2], &dt_b );
// Project one of the datatypes (it doesn't matter which) to the
// complex domain.
dt_complex = bli_dt_proj_to_complex( dt_c );
// Map the dimension specifier to actual dimensions.
m = libblis_test_get_dim_from_prob_size( op->dim_spec[0], p_cur );
n = libblis_test_get_dim_from_prob_size( op->dim_spec[1], p_cur );
k = libblis_test_get_dim_from_prob_size( op->dim_spec[2], p_cur );
// Map parameter characters to BLIS constants.
bli_param_map_char_to_blis_trans( pc_str[0], &transa );
bli_param_map_char_to_blis_trans( pc_str[1], &transb );
// Create test scalars.
bli_obj_scalar_init_detached( dt_complex, &alpha );
bli_obj_scalar_init_detached( dt_complex, &beta );
// Create test operands (vectors and/or matrices).
libblis_test_mobj_create( params, dt_a, transa,
sc_str[1], m, k, &a );
libblis_test_mobj_create( params, dt_b, transb,
sc_str[2], k, n, &b );
libblis_test_mobj_create( params, dt_c, BLIS_NO_TRANSPOSE,
sc_str[0], m, n, &c );
libblis_test_mobj_create( params, dt_c, BLIS_NO_TRANSPOSE,
sc_str[0], m, n, &c_save );
// For mixed-precision, set the computation precision of C.
if ( params->mixed_precision )
{
num_t dt_comp;
prec_t comp_prec;
// The computation precision is encoded in the computation datatype,
// which appears as an additional char in dc_str.
bli_param_map_char_to_blis_dt( dc_str[3], &dt_comp );
// Extract the precision from the computation datatype.
comp_prec = bli_dt_prec( dt_comp );
// Set the computation precision of C.
bli_obj_set_comp_prec( comp_prec, &c );
}
// Set alpha and beta.
{
bli_setsc( 2.0, 0.0, &alpha );
bli_setsc( 1.2, 0.5, &beta );
//bli_setsc( 1.0, 0.0, &alpha );
//bli_setsc( 1.0, 0.0, &beta );
}
// Randomize A, B, and C, and save C.
libblis_test_mobj_randomize( params, TRUE, &a );
libblis_test_mobj_randomize( params, TRUE, &b );
libblis_test_mobj_randomize( params, TRUE, &c );
bli_copym( &c, &c_save );
// Apply the parameters.
bli_obj_set_conjtrans( transa, &a );
bli_obj_set_conjtrans( transb, &b );
// Repeat the experiment n_repeats times and record results.
for ( i = 0; i < n_repeats; ++i )
{
bli_copym( &c_save, &c );
time = bli_clock();
libblis_test_gemm_impl( iface, &alpha, &a, &b, &beta, &c );
time_min = bli_clock_min_diff( time_min, time );
}
// Estimate the performance of the best experiment repeat.
//*perf = ( 2.0 * m * n * k ) / time_min / FLOPS_PER_UNIT_PERF;
//if ( bli_obj_is_complex( &c ) ) *perf *= 4.0;
*perf = libblis_test_gemm_flops( &a, &b, &c ) / time_min / FLOPS_PER_UNIT_PERF;
// Perform checks.
libblis_test_gemm_md_check( params, &alpha, &a, &b, &beta, &c, &c_save, resid );
// Zero out performance and residual if output matrix is empty.
libblis_test_check_empty_problem( &c, perf, resid );
// Free the test objects.
bli_obj_free( &a );
bli_obj_free( &b );
bli_obj_free( &c );
bli_obj_free( &c_save );
}
void libblis_test_gemm_impl
(
iface_t iface,
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c
)
{
switch ( iface )
{
case BLIS_TEST_SEQ_FRONT_END:
#if 0
//bli_printm( "alpha", alpha, "%5.2f", "" );
//bli_printm( "beta", beta, "%5.2f", "" );
if ( bli_obj_dt( c ) == BLIS_DCOMPLEX )
{
bli_printm( "a", a, "%5.2f", "" );
bli_printm( "b", b, "%5.2f", "" );
bli_printm( "c", c, "%5.2f", "" );
}
#endif
//if ( bli_obj_length( b ) == 16 &&
// bli_obj_stor3_from_strides( c, a, b ) == BLIS_CRR )
//bli_printm( "c before", c, "%6.3f", "" );
bli_gemm( alpha, a, b, beta, c );
//bls_gemm( alpha, a, b, beta, c );
#if 0
if ( bli_obj_dt( c ) == BLIS_DCOMPLEX )
bli_printm( "c after", c, "%6.3f", "" );
#endif
//bli_printm( "c after", c, "%5.2f", "" );
break;
default:
libblis_test_printf_error( "Invalid interface type.\n" );
}
}
void libblis_test_gemm_md_check
(
test_params_t* params,
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c,
obj_t* c_orig,
double* resid
)
{
num_t dt_real = bli_obj_dt_proj_to_real( c );
num_t dt_comp = bli_obj_dt_proj_to_complex( c );
num_t dt;
dim_t m = bli_obj_length( c );
dim_t n = bli_obj_width( c );
dim_t k = bli_obj_width_after_trans( a );
obj_t norm;
obj_t t, v, w, z;
double junk;
// Compute our reference checksum in the real domain if all operands
// are real, and in the complex domain otherwise. Also implicit in this
// is that we use the storage precision of C to determine the precision
// in which we perform the reference checksum.
if ( bli_obj_is_real( a ) &&
bli_obj_is_real( b ) &&
bli_obj_is_real( c ) ) dt = dt_real;
else dt = dt_comp;
// This function works in a manner similar to that of the function
// libblis_test_gemm_check(), except that we project a, b, and c into
// the complex domain (regardless of their storage datatype), and then
// proceed with the checking accordingly.
obj_t a2, b2, c2, c0;
bli_obj_scalar_init_detached( dt_real, &norm );
bli_obj_create( dt, n, 1, 0, 0, &t );
bli_obj_create( dt, m, 1, 0, 0, &v );
bli_obj_create( dt, k, 1, 0, 0, &w );
bli_obj_create( dt, m, 1, 0, 0, &z );
libblis_test_vobj_randomize( params, TRUE, &t );
// We need to zero out the imaginary part of t in order for our
// checks to work in all cases. Otherwise, the imaginary parts
// could affect intermediate products, depending on the order that
// they are executed.
bli_setiv( &BLIS_ZERO, &t );
// Create complex equivalents of a, b, c_orig, and c.
bli_obj_create( dt, m, k, 0, 0, &a2 );
bli_obj_create( dt, k, n, 0, 0, &b2 );
bli_obj_create( dt, m, n, 0, 0, &c2 );
bli_obj_create( dt, m, n, 0, 0, &c0 );
// Cast a, b, c_orig, and c into the datatype of our temporary objects.
bli_castm( a, &a2 );
bli_castm( b, &b2 );
bli_castm( c_orig, &c2 );
bli_castm( c, &c0 );
bli_gemv( &BLIS_ONE, &c0, &t, &BLIS_ZERO, &v );
#if 0
if ( bli_obj_is_scomplex( c ) &&
bli_obj_is_float( a ) &&
bli_obj_is_float( b ) )
{
bli_printm( "test_gemm.c: a", a, "%7.3f", "" );
bli_printm( "test_gemm.c: b", b, "%7.3f", "" );
bli_printm( "test_gemm.c: c orig", c_orig, "%7.3f", "" );
bli_printm( "test_gemm.c: c computed", c, "%7.3f", "" );
}
#endif
#if 0
bli_gemm( alpha, &a2, &b2, beta, &c2 );
bli_gemv( &BLIS_ONE, &c2, &t, &BLIS_ZERO, &z );
if ( bli_obj_is_real( c ) ) bli_setiv( &BLIS_ZERO, &z );
#else
bli_gemv( &BLIS_ONE, &b2, &t, &BLIS_ZERO, &w );
bli_gemv( alpha, &a2, &w, &BLIS_ZERO, &z );
bli_gemv( beta, &c2, &t, &BLIS_ONE, &z );
if ( bli_obj_is_real( c ) ) bli_setiv( &BLIS_ZERO, &z );
#endif
bli_subv( &z, &v );
bli_normfv( &v, &norm );
bli_getsc( &norm, resid, &junk );
bli_obj_free( &t );
bli_obj_free( &v );
bli_obj_free( &w );
bli_obj_free( &z );
bli_obj_free( &a2 );
bli_obj_free( &b2 );
bli_obj_free( &c2 );
bli_obj_free( &c0 );
}
void libblis_test_gemm_check
(
test_params_t* params,
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c,
obj_t* c_orig,
double* resid
)
{
num_t dt = bli_obj_dt( c );
num_t dt_real = bli_obj_dt_proj_to_real( c );
dim_t m = bli_obj_length( c );
dim_t n = bli_obj_width( c );
dim_t k = bli_obj_width_after_trans( a );
obj_t norm;
obj_t t, v, w, z;
double junk;
//
// Pre-conditions:
// - a is randomized.
// - b is randomized.
// - c_orig is randomized.
// Note:
// - alpha and beta should have non-zero imaginary components in the
// complex cases in order to more fully exercise the implementation.
//
// Under these conditions, we assume that the implementation for
//
// C := beta * C_orig + alpha * transa(A) * transb(B)
//
// is functioning correctly if
//
// normfv( v - z )
//
// is negligible, where
//
// v = C * t
// z = ( beta * C_orig + alpha * transa(A) * transb(B) ) * t
// = beta * C_orig * t + alpha * transa(A) * transb(B) * t
// = beta * C_orig * t + alpha * transa(A) * w
// = beta * C_orig * t + z
//
bli_obj_scalar_init_detached( dt_real, &norm );
bli_obj_create( dt, n, 1, 0, 0, &t );
bli_obj_create( dt, m, 1, 0, 0, &v );
bli_obj_create( dt, k, 1, 0, 0, &w );
bli_obj_create( dt, m, 1, 0, 0, &z );
libblis_test_vobj_randomize( params, TRUE, &t );
bli_gemv( &BLIS_ONE, c, &t, &BLIS_ZERO, &v );
bli_gemv( &BLIS_ONE, b, &t, &BLIS_ZERO, &w );
bli_gemv( alpha, a, &w, &BLIS_ZERO, &z );
bli_gemv( beta, c_orig, &t, &BLIS_ONE, &z );
bli_subv( &z, &v );
bli_normfv( &v, &norm );
bli_getsc( &norm, resid, &junk );
bli_obj_free( &t );
bli_obj_free( &v );
bli_obj_free( &w );
bli_obj_free( &z );
}
double libblis_test_gemm_flops
(
obj_t* a,
obj_t* b,
obj_t* c
)
{
bool a_is_real = bli_obj_is_real( a );
bool a_is_complex = bli_obj_is_complex( a );
bool b_is_real = bli_obj_is_real( b );
bool b_is_complex = bli_obj_is_complex( b );
bool c_is_real = bli_obj_is_real( c );
bool c_is_complex = bli_obj_is_complex( c );
double m = ( double )bli_obj_length( c );
double n = ( double )bli_obj_width( c );
double k = ( double )bli_obj_width( a );
double flops;
if ( ( c_is_complex && a_is_complex && b_is_complex ) )
{
flops = 8.0 * m * n * k;
}
else if ( ( c_is_complex && a_is_complex && b_is_real ) ||
( c_is_complex && a_is_real && b_is_complex ) ||
( c_is_real && a_is_complex && b_is_complex ) )
{
flops = 4.0 * m * n * k;
}
else
{
flops = 2.0 * m * n * k;
}
return flops;
}