void bli_obj_create_without_buffer( num_t dt,
dim_t m,
dim_t n,
obj_t* obj )
{
siz_t elem_size;
void* s;
if ( bli_error_checking_is_enabled() )
bli_obj_create_without_buffer_check( dt, m, n, obj );
// Query the size of one element of the object's pre-set datatype.
elem_size = bli_datatype_size( dt );
// Set any default properties that are appropriate.
bli_obj_set_defaults( *obj );
// Set the object root to itself, since obj is not presumed to be a view
// into a larger matrix. This is typically the only time this field is
// ever set; henceforth, subpartitions and aliases to this object will
// get copies of this field, and thus always have access to its
// "greatest-grand" parent (ie: the original parent, or "root", object).
// However, there ARE a few places where it is convenient to reset the
// root field explicitly via bli_obj_set_as_root(). (We do not list
// those places here. Just grep for bli_obj_set_as_root within the
// top-level 'frame' directory to see them.
bli_obj_set_as_root( *obj );
// Set individual fields.
bli_obj_set_buffer( NULL, *obj );
bli_obj_set_datatype( dt, *obj );
bli_obj_set_elem_size( elem_size, *obj );
bli_obj_set_target_datatype( dt, *obj );
bli_obj_set_execution_datatype( dt, *obj );
bli_obj_set_dims( m, n, *obj );
bli_obj_set_offs( 0, 0, *obj );
bli_obj_set_diag_offset( 0, *obj );
// Set the internal scalar to 1.0.
s = bli_obj_internal_scalar_buffer( *obj );
if ( bli_is_float( dt ) ) { bli_sset1s( *(( float* )s) ); }
else if ( bli_is_double( dt ) ) { bli_dset1s( *(( double* )s) ); }
else if ( bli_is_scomplex( dt ) ) { bli_cset1s( *(( scomplex* )s) ); }
else if ( bli_is_dcomplex( dt ) ) { bli_zset1s( *(( dcomplex* )s) ); }
}
siz_t bli_packv_init_pack
(
pack_t schema,
bszid_t bmult_id,
obj_t* a,
obj_t* p,
cntx_t* cntx
)
{
num_t dt = bli_obj_dt( a );
dim_t dim_a = bli_obj_vector_dim( a );
dim_t bmult = bli_cntx_get_blksz_def_dt( dt, bmult_id, cntx );
membrk_t* membrk = bli_cntx_membrk( cntx );
#if 0
mem_t* mem_p;
#endif
dim_t m_p_pad;
siz_t size_p;
inc_t rs_p, cs_p;
void* buf;
// We begin by copying the basic fields of c.
bli_obj_alias_to( a, p );
// Update the dimensions.
bli_obj_set_dims( dim_a, 1, p );
// Reset the view offsets to (0,0).
bli_obj_set_offs( 0, 0, p );
// Set the pack schema in the p object to the value in the control tree
// node.
bli_obj_set_pack_schema( schema, p );
// Compute the dimensions padded by the dimension multiples.
m_p_pad = bli_align_dim_to_mult( bli_obj_vector_dim( p ), bmult );
// Compute the size of the packed buffer.
size_p = m_p_pad * 1 * bli_obj_elem_size( p );
#if 0
// Extract the address of the mem_t object within p that will track
// properties of the packed buffer.
mem_p = bli_obj_pack_mem( *p );
if ( bli_mem_is_unalloc( mem_p ) )
{
// If the mem_t object of p has not yet been allocated, then acquire
// a memory block suitable for a vector.
bli_membrk_acquire_v( membrk,
size_p,
mem_p );
}
else
{
// If the mem_t object has already been allocated, then release and
// re-acquire the memory so there is sufficient space.
if ( bli_mem_size( mem_p ) < size_p )
{
bli_membrk_release( mem_p );
bli_membrk_acquire_v( membrk,
size_p,
mem_p );
}
}
// Grab the buffer address from the mem_t object and copy it to the
// main object buffer field. (Sometimes this buffer address will be
// copied when the value is already up-to-date, because it persists
// in the main object buffer field across loop iterations.)
buf = bli_mem_buffer( mem_p );
bli_obj_set_buffer( buf, p );
#endif
// Save the padded (packed) dimensions into the packed object.
bli_obj_set_padded_dims( m_p_pad, 1, p );
// Set the row and column strides of p based on the pack schema.
if ( schema == BLIS_PACKED_VECTOR )
{
// Set the strides to reflect a column-stored vector. Note that the
// column stride may never be used, and is only useful to determine
// how much space beyond the vector would need to be zero-padded, if
// zero-padding was needed.
rs_p = 1;
cs_p = bli_obj_padded_length( p );
bli_obj_set_strides( rs_p, cs_p, p );
}
return size_p;
}
