politarczyk/knotkit
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mpimain set up to compute Steenrod squares for 15 crossing mutant knot

Browse Source 
groups.
This commit is contained in:
Cotton Seed 2012-07-30 15:43:28 -04:00
parent eff35be4ff
commit ca8c47cc5b
1 changed files with 17 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
mpimain.cpp
View File

@ -1,4 +1,4 @@
s
#include <knotkit.h> #include <knotkit.h>
#include <mpi.h> #include <mpi.h>
@ -14,8 +14,13 @@ master ()
{ {
basedvector<knot_desc, 1> work; basedvector<knot_desc, 1> work;
work.append (knot_desc (TORUS, 0, 0)); basedvector<basedvector<unsigned, 1>, 1> groups = mutant_knot_groups (15);
for (unsigned i = 1; i <= groups.size (); i ++)
for (unsigned j = 1; j <= groups[i].size (); j ++)
work.append (knot_desc (knot_desc::HTW, 15, groups[i][j]));
#if 0
for (unsigned i = 14; i >= 1; i --) for (unsigned i = 14; i >= 1; i --)
{ {
if (i <= 10) if (i <= 10)
@ -39,6 +44,7 @@ master ()
} }
} }
} }
#endif
int ntasks = num_tasks (); int ntasks = num_tasks ();
@ -81,10 +87,8 @@ master ()
} }
} }
void pair<mod_map<Z2>, mod_map<Z2> >
compute_kh_sq (map<knot_desc, compute_kh_sq (const knot_desc &desc)
triple<ptr<const module<Z2> >, mod_map<Z2>, mod_map<Z2> > > &knot_kh_sq,
knot_desc &desc)
{ {
knot_diagram kd = desc.diagram (); knot_diagram kd = desc.diagram ();
@ -105,9 +109,8 @@ compute_kh_sq (map<knot_desc,
assert (sq1.compose (sq1) == 0); assert (sq1.compose (sq1) == 0);
assert (sq2.compose (sq2) + sq1.compose (sq2).compose (sq1) == 0); assert (sq2.compose (sq2) + sq1.compose (sq2).compose (sq1) == 0);
knot_kh_sq.push (desc, return pair<mod_map<Z2>, mod_map<Z2> > (sq1, sq2);
triple<ptr<const module<Z2> >, mod_map<Z2>, mod_map<Z2> > (s.new_C, sq1, sq2));
} }
void void
@ -129,61 +132,15 @@ slave ()
printf ("[% 2d] CMD_DO %s\n", rank, desc.name ().c_str ()); printf ("[% 2d] CMD_DO %s\n", rank, desc.name ().c_str ());
map<knot_desc,
triple<ptr<const module<Z2> >, mod_map<Z2>, mod_map<Z2> > > knot_kh_sq;
char buf[1000]; char buf[1000];
if (desc.t == knot_desc::TORUS) sprintf (buf, "incoming/K%d_%d.dat", desc.i, desc.j);
{
sprintf (buf, "T.dat"); pair<mod_map<Z2>, mod_map<Z2> > p = compute_kh_sq (knot_kh_sq, desc);
for (unsigned t = 3; t <= 16; t ++) // twists
for (unsigned s = 2; s <= t; s ++) // strands
{
if ((s - 1) * t > 18)
continue;
desc.i = s;
desc.j = t;
compute_kh_sq (knot_kh_sq, desc);
}
}
else
{
unsigned j0 = desc.j;
switch (desc.t)
{
case knot_desc::ROLFSEN:
sprintf (buf, "%d_%d.dat", desc.i, j0);
break;
case knot_desc::HTW:
sprintf (buf, "K%d_%d.dat", desc.i, j0);
break;
case knot_desc::MT:
sprintf (buf, "L%d_%d.dat", desc.i, j0);
break;
default: abort ();
}
for (unsigned j = j0;
j <= std::min (j0 + block_size - 1,
desc.table_crossing_knots ());
j ++)
{
desc.j = j;
compute_kh_sq (knot_kh_sq, desc);
}
}
{ {
writer w (buf); writer w (buf);
write (w, knot_kh_sq); write (w, p.first);
write (w, p.second);
} }
send_int (0, 0); send_int (0, 0);