public static void JoinTableLogFile()
{
long totalcombinations = 10368L * 40320 * 12;
// create the move table (non-used elements are 0)
HugeByteArray b = new HugeByteArray(totalcombinations);
// read files where the table parts were written to
Console.WriteLine("Reading phase2 parts file...");
FileStream moves = new FileStream("c:/temp/phase2.log", FileMode.Open, FileAccess.Read);
// read all move parts (newer overwriting older ones)
byte[] fbuffer = new byte[6];
for (; ;)
{
int len = moves.Read(fbuffer, 0, 6);
if (len == 0)
{
break;
}
if (len != 6)
{
throw new IOException("Could not read exactly 6 bytes!");
}
long index = ((long)fbuffer[0])
+ (((long)fbuffer[1]) << 8)
+ (((long)fbuffer[2]) << 16)
+ (((long)fbuffer[3]) << 24)
+ (((long)fbuffer[4]) << 32);
b[index] = fbuffer[5];
}
moves.Close();
// write in new order to algorithm files
Console.WriteLine("Start writing phase2 files...");
FileStream o = new FileStream("c:/temp/phase2_0.bin", FileMode.Create, FileAccess.Write);
for (long index = 0; index < totalcombinations / 2; index++)
{
o.WriteByte(b[index]);
}
o.Close();
o = new FileStream("c:/temp/phase2_1.bin", FileMode.Create, FileAccess.Write);
for (long index = totalcombinations / 2; index < totalcombinations; index++)
{
o.WriteByte(b[index]);
}
o.Close();
}
public static void CreateTables()
{
long totalcombinations = 10368L * 40320 * 12;
// create files to write table parts to
FileStream moves = new FileStream("c:/temp/phase2.log", FileMode.Create, FileAccess.Write);
byte[] fbuffer = new byte[6];
// initialize to not reached
HugeByteArray steps = new HugeByteArray(totalcombinations);
for (long index = 0; index < totalcombinations; index++)
{
steps[index] = 255;
}
// create the root situation for this phase
Cube c = new Cube();
int dummym;
steps[getindex(c, out dummym)] = 0;
Console.WriteLine("Start computing reachable positions...");
// iteratively add newly reachable situations
for (int distance = 0; distance < 250; distance++)
{
int currentsituations = 0;
int foundnew = 0;
int foundfaster = 0;
long start = DateTime.Now.Ticks / 10000; // ms
for (long index = 0; index < totalcombinations; index++)
{
// consider only situations with current distance to get next situations
if (steps[index] == distance)
{
currentsituations++; // count situations with this distance
setcube(c, index);
for (int a = 1; a <= Cube.B3D3; a++)
{
c.DoIncrementalAction(a);
// disallow moves that would bring cube out of S1
if (!Cube.s1_actions[a])
{
continue;
}
int mir;
long ni = getindex(c, out mir);
int newdistance = distance + Cube.time_actions[a];
if (newdistance < steps[ni]) // found a faster route
{
if (steps[ni] == 255)
{
foundnew++;
}
else
{
foundfaster++;
}
// memorize shorter distance
steps[ni] = (byte)newdistance;
// write to spool file (position: 5 byte, move: 1 byte)
fbuffer[0] = (byte)(ni & 0xff);
fbuffer[1] = (byte)((ni >> 8) & 0xff);
fbuffer[2] = (byte)((ni >> 16) & 0xff);
fbuffer[3] = (byte)((ni >> 24) & 0xff);
fbuffer[4] = (byte)((ni >> 32) & 0xff);
fbuffer[5] = (byte)(Cube.sym_actions[mir][a]);
moves.Write(fbuffer, 0, 6);
}
}
}
}
long end = DateTime.Now.Ticks / 10000; // ms
Console.WriteLine(distance + ": Situations: " + currentsituations + " New: " + foundnew + " Improved: " + foundfaster + " (" + (end - start) + " ms)");
}
// finish writing
moves.Close();
}
public static void CreateTables()
{
long totalcombinations = 10368L * 40320 * 12;
// create files to write table parts to
FileStream moves = new FileStream("c:/temp/phase2.log", FileMode.Create, FileAccess.Write);
byte[] fbuffer = new byte[6];
// initialize to not reached
HugeByteArray steps = new HugeByteArray(totalcombinations);
for (long index = 0; index < totalcombinations; index++)
{
steps[index] = 255;
}
// create the root situation for this phase
Cube c = new Cube();
int dummym;
steps[getindex(c, out dummym)] = 0;
Console.WriteLine("Start computing reachable positions...");
// iteratively add newly reachable situations
for (int distance = 0; distance < 250; distance++)
{
int currentsituations = 0;
int foundnew = 0;
int foundfaster = 0;
long start = DateTime.Now.Ticks / 10000; // ms
for (long index = 0; index < totalcombinations; index++)
{
// consider only situations with current distance to get next situations
if (steps[index] == distance)
{
currentsituations++; // count situations with this distance
setcube(c, index);
for (int a = 1; a <= Cube.B3D3; a++)
{
c.DoIncrementalAction(a);
// disallow moves that would bring cube out of S1
if (!Cube.s1_actions[a])
{
continue;
}
int mir;
long ni = getindex(c, out mir);
int newdistance = distance + Cube.time_actions[a];
if (newdistance < steps[ni]) // found a faster route
{
if (steps[ni] == 255)
{
foundnew++;
}
else
{
foundfaster++;
}
// memorize shorter distance
steps[ni] = (byte)newdistance;
// write to spool file (position: 5 byte, move: 1 byte)
fbuffer[0] = (byte)(ni & 0xff);
fbuffer[1] = (byte)((ni >> 8) & 0xff);
fbuffer[2] = (byte)((ni >> 16) & 0xff);
fbuffer[3] = (byte)((ni >> 24) & 0xff);
fbuffer[4] = (byte)((ni >> 32) & 0xff);
fbuffer[5] = (byte)(Cube.sym_actions[mir][a]);
moves.Write(fbuffer, 0, 6);
}
}
}
}
long end = DateTime.Now.Ticks / 10000; // ms
Console.WriteLine(distance + ": Situations: " + currentsituations + " New: " + foundnew + " Improved: " + foundfaster + " (" + (end - start) + " ms)");
}
// finish writing
moves.Close();
}
public static void JoinTableLogFile()
{
long totalcombinations = 10368L * 40320 * 12;
// create the move table (non-used elements are 0)
HugeByteArray b = new HugeByteArray(totalcombinations);
// read files where the table parts were written to
Console.WriteLine("Reading phase2 parts file...");
FileStream moves = new FileStream("c:/temp/phase2.log", FileMode.Open, FileAccess.Read);
// read all move parts (newer overwriting older ones)
byte[] fbuffer = new byte[6];
for (; ; )
{
int len = moves.Read(fbuffer, 0, 6);
if (len == 0)
{
break;
}
if (len != 6)
{
throw new IOException("Could not read exactly 6 bytes!");
}
long index = ((long)fbuffer[0])
+ (((long)fbuffer[1]) << 8)
+ (((long)fbuffer[2]) << 16)
+ (((long)fbuffer[3]) << 24)
+ (((long)fbuffer[4]) << 32);
b[index] = fbuffer[5];
}
moves.Close();
// write in new order to algorithm files
Console.WriteLine("Start writing phase2 files...");
FileStream o = new FileStream("c:/temp/phase2_0.bin", FileMode.Create, FileAccess.Write);
for (long index = 0; index < totalcombinations / 2; index++)
{
o.WriteByte(b[index]);
}
o.Close();
o = new FileStream("c:/temp/phase2_1.bin", FileMode.Create, FileAccess.Write);
for (long index = totalcombinations / 2; index < totalcombinations; index++)
{
o.WriteByte(b[index]);
}
o.Close();
}
