/* BLIS An object-based framework for developing high-performance BLAS-like libraries. Copyright (C) 2014, The University of Texas at Austin 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 of The University of Texas 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 #include "blis.h" int main( int argc, char** argv ) { double* a; double* b; double* c; double* d; double* e; double* f; dcomplex* g; dcomplex* h; double alpha, beta, gamma; dim_t m, n; inc_t rs, cs; // Initialize some basic constants. double zero = 0.0; double one = 1.0; double minus_one = -1.0; dcomplex minus_one_z = {-1.0, 0.0}; // // This file demonstrates working with matrices and the level-1m // operations. // // // Example 1: Create matrices and then broadcast (copy) scalar // values to all elements. // printf( "\n#\n# -- Example 1 --\n#\n\n" ); // Create a few matrices to work with. We make them all of the same // dimensions so that we can perform operations between them. m = 2; n = 3; rs = 1; cs = m; a = malloc( m * n * sizeof( double ) ); b = malloc( m * n * sizeof( double ) ); c = malloc( m * n * sizeof( double ) ); d = malloc( m * n * sizeof( double ) ); e = malloc( m * n * sizeof( double ) ); // Let's initialize some scalars. alpha = 2.0; beta = 0.2; gamma = 3.0; printf( "alpha:\n%4.1f\n\n", alpha ); printf( "beta:\n%4.1f\n\n", beta ); printf( "gamma:\n%4.1f\n\n", gamma ); printf( "\n" ); // Matrices, like vectors, can set by "broadcasting" a constant to every // element. Note that the second argument (0) is the diagonal offset. // The diagonal offset is only used when the uplo value is something other // than BLIS_DENSE (e.g. BLIS_LOWER or BLIS_UPPER). bli_dsetm( BLIS_NO_CONJUGATE, 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, m, n, &one, a, rs, cs ); bli_dsetm( BLIS_NO_CONJUGATE, 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, m, n, &alpha, b, rs, cs ); bli_dsetm( BLIS_NO_CONJUGATE, 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, m, n, &zero, c, rs, cs ); bli_dprintm( "a := 1.0", m, n, a, rs, cs, "%4.1f", "" ); bli_dprintm( "b := alpha", m, n, b, rs, cs, "%4.1f", "" ); bli_dprintm( "c := 0.0", m, n, c, rs, cs, "%4.1f", "" ); // // Example 2: Randomize a matrix object. // printf( "\n#\n# -- Example 2 --\n#\n\n" ); bli_drandm( 0, BLIS_DENSE, m, n, e, rs, cs ); bli_dprintm( "e (randomized):", m, n, e, rs, cs, "%4.1f", "" ); // // Example 3: Perform element-wise operations on matrices. // printf( "\n#\n# -- Example 3 --\n#\n\n" ); // Copy a matrix. bli_dcopym( 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, BLIS_NO_TRANSPOSE, m, n, e, rs, cs, d, rs, cs ); bli_dprintm( "d := e", m, n, d, rs, cs, "%4.1f", "" ); // Add and subtract vectors. bli_daddm( 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, BLIS_NO_TRANSPOSE, m, n, a, rs, cs, d, rs, cs ); bli_dprintm( "d := d + a", m, n, d, rs, cs, "%4.1f", "" ); bli_dsubm( 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, BLIS_NO_TRANSPOSE, m, n, a, rs, cs, e, rs, cs ); bli_dprintm( "e := e - a", m, n, e, rs, cs, "%4.1f", "" ); // Scale a matrix (destructive). bli_dscalm( BLIS_NO_CONJUGATE, 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, m, n, &alpha, e, rs, cs ); bli_dprintm( "e := alpha * e", m, n, e, rs, cs, "%4.1f", "" ); // Scale a matrix (non-destructive). bli_dscal2m( 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, BLIS_NO_TRANSPOSE, m, n, &beta, e, rs, cs, c, rs, cs ); bli_dprintm( "c := beta * e", m, n, c, rs, cs, "%4.1f", "" ); // Scale and accumulate between matrices. bli_daxpym( 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, BLIS_NO_TRANSPOSE, m, n, &alpha, a, rs, cs, c, rs, cs ); bli_dprintm( "c := alpha * a", m, n, c, rs, cs, "%4.1f", "" ); // // Example 4: Copy and transpose a matrix. // printf( "\n#\n# -- Example 4 --\n#\n\n" ); // Create an n-by-m matrix into which we can copy-transpose an m-by-n // matrix. f = malloc( n * m * sizeof( double ) ); dim_t rsf = 1, csf = n; // Initialize all of 'f' to -1.0 to simulate junk values. bli_dsetm( BLIS_NO_CONJUGATE, 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, n, m, &minus_one, f, rsf, csf ); bli_dprintm( "e:", m, n, e, rs, cs, "%4.1f", "" ); bli_dprintm( "f (initial value):", n, m, f, rsf, csf, "%4.1f", "" ); // Copy 'e' to 'f', transposing 'e' in the process. Notice that we haven't // modified any properties of 'd'. It's the source operand that matters // when marking an operand for transposition, not the destination. bli_dcopym( 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, BLIS_TRANSPOSE, n, m, e, rs, cs, f, rsf, csf ); bli_dprintm( "f (copied value):", n, m, f, rsf, csf, "%4.1f", "" ); // // Example 5: Copy and Hermitian-transpose a matrix. // printf( "\n#\n# -- Example 5 --\n#\n\n" ); g = malloc( m * n * sizeof(dcomplex) ); h = malloc( n * m * sizeof(dcomplex) ); bli_zrandm( 0, BLIS_DENSE, m, n, g, rs, cs ); bli_zsetm( BLIS_NO_CONJUGATE, 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, n, m, &minus_one_z, h, rsf, csf ); bli_zprintm( "g:", m, n, g, rs, cs, "%4.1f", "" ); bli_zprintm( "h (initial value):", n, m, h, rsf, csf, "%4.1f", "" ); bli_zcopym( 0, BLIS_NONUNIT_DIAG, BLIS_DENSE, BLIS_CONJ_TRANSPOSE, n, m, g, rs, cs, h, rsf, csf ); bli_zprintm( "h (copied value):", n, m, h, rsf, csf, "%4.1f", "" ); // Free the memory obtained via malloc(). free( a ); free( b ); free( c ); free( d ); free( e ); free( f ); free( g ); free( h ); return 0; } // -----------------------------------------------------------------------------