diff options
Diffstat (limited to 'test/monniaux/mod_int_mat/int_mat.c')
| -rw-r--r-- | test/monniaux/mod_int_mat/int_mat.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/test/monniaux/mod_int_mat/int_mat.c b/test/monniaux/mod_int_mat/int_mat.c new file mode 100644 index 00000000..167c91fd --- /dev/null +++ b/test/monniaux/mod_int_mat/int_mat.c @@ -0,0 +1,218 @@ +#include "modint.h" + +void modint_mat_mul1(unsigned m, unsigned n, unsigned p, + modint * restrict c, unsigned stride_c, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + c[i*stride_c+k] = 0; + } + } + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + for(unsigned j=0; j<n; j++) { + c[i*stride_c+k] += a[i*stride_a+j] * b[j*stride_b+k]; + } + } + } + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + c[i*stride_c+k] %= MODULUS; + } + } +} + +void modint_mat_mul2(unsigned m, unsigned n, unsigned p, + modint * restrict c, unsigned stride_c, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + modint total = 0; + for(unsigned j=0; j<n; j++) { + total += a[i*stride_a + j] * b[j*stride_b + k]; + } + c[i*stride_c+k] = total % MODULUS; + } + } +} + +void modint_mat_mul3(unsigned m, unsigned n, unsigned p, + modint * restrict c, unsigned stride_c, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + modint total0 = 0, total1 = 0; + unsigned j; + for(j=0; j+1<n; j+=2) { + total0 += a[i*stride_a + j] * b[j*stride_b + k]; + total1 += a[i*stride_a + (j+1)] * b[(j+1)*stride_b + k]; + } + if (j < n) { + total0 += a[i*stride_a + j] * b[j*stride_b + k]; + } + c[i*stride_c+k] = (total0+total1) % MODULUS; + } + } +} + +void modint_mat_mul4(unsigned m, unsigned n, unsigned p, + modint * c, unsigned stride_c, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + const modint *pa_i = a; + modint * pc_i = c; + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + const modint *pb_j_k = b+k, *pa_i_j = pa_i; + modint total = 0; + for(unsigned j=0; j<n; j++) { + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + } + pc_i[k] = total % MODULUS; + } + pa_i += stride_a; + pc_i += stride_c; + } +} + +void modint_mat_mul5(unsigned m, unsigned n, unsigned p, + modint * c, unsigned stride_c, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + const modint *pa_i = a; + modint * pc_i = c; + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + const modint *pb_j_k = b+k, *pa_i_j = pa_i; + modint total = 0; + for(unsigned j2=0, n2=n/2; j2<n2; j2++) { + modint p0 = *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + modint p1 = *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + total += p0 + p1; + } + if (n%2) { + total += *pa_i_j * *pb_j_k; + } + pc_i[k] = total % MODULUS; + } + pa_i += stride_a; + pc_i += stride_c; + } +} + +void modint_mat_mul6(unsigned m, unsigned n, unsigned p, + modint * c, unsigned stride_c, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + const modint *pa_i = a; + modint * pc_i = c; + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + const modint *pb_j_k = b+k, *pa_i_j = pa_i; + modint total = 0; + unsigned j2=0, n2=n/2; + if (n2 > 0) { + do { + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + j2++; + } while (j2 < n2); + } + if (n%2) { + total += *pa_i_j * *pb_j_k; + } + pc_i[k] = total % MODULUS; + } + pa_i += stride_a; + pc_i += stride_c; + } +} + +void modint_mat_mul7(unsigned m, unsigned n, unsigned p, + modint * c, unsigned stride_c, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + const modint *pa_i = a; + modint * pc_i = c; + for(unsigned i=0; i<m; i++) { + for(unsigned k=0; k<p; k++) { + const modint *pb_j_k = b+k, *pa_i_j = pa_i; + modint total = 0; + { + unsigned j4=0, n4=n/4; + if (n4 > 0) { + do { + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + j4++; + } while (j4 < n4); + } + } + { + unsigned j4=0, n4=n%4; + if (n4 > 0) { + do { + total += *pa_i_j * *pb_j_k; + pa_i_j ++; + pb_j_k += stride_b; + j4++; + } while (j4 < n4); + } + } + pc_i[k] = total % MODULUS; + } + pa_i += stride_a; + pc_i += stride_c; + } +} + +modint modint_random(void) { + static uint32_t next = 1325997111; + next = next * 1103515249 + 12345; + return next % MODULUS; +} + +void modint_mat_random(unsigned m, + unsigned n, + modint *a, unsigned stride_a) { + for(unsigned i=0; i<m; i++) { + for(unsigned j=0; j<n; j++) { + a[i*stride_a + j] = modint_random(); + } + } +} + +bool modint_mat_equal(unsigned m, + unsigned n, + const modint *a, unsigned stride_a, + const modint *b, unsigned stride_b) { + for(unsigned i=0; i<m; i++) { + for(unsigned j=0; j<n; j++) { + if (a[i*stride_a + j] != b[i*stride_b + j]) return false; + } + } + return true; +} |