143
143
calculation speed.
144
144
Compared to using only mode=1 at calling Solveboard 4 times, each
145
145
time for each alternative leading hand, the calculation time is
146
almost halfed using mode=2 as described above.
146
roughly halfed using mode=2 as described above.
149
Release Notes DDS 1.1.5
150
---------------------------
151
A correction has been made removing a risk of DD value miscalculation.
152
The fault has not however yet showed up as far as I know.
154
A survival mechanism has been added to handle the situation if the
155
transposition table gets full:
156
The transposition table is emptied.
157
Before this, a full transposition table would in practise lock up the program.
158
Therefore the present size of the transposition table is quite large (393 MB)
159
to handle the most difficult deals.
160
This could lead to extensive memory swapping with the hard drive if the
161
PC RAM size is 256 MB or less, slowing down the program.
162
With the new survival mechanism, the program will not lockup at a full
163
transposition table. The calculation time will increase because of the extra time
164
to build up stored positions in the table, but the increase will be reasonable.
165
This means that DDS should be possible to run with such small PC RAM sizes
166
as 64 MB (this has not been tested though).
added
removed
release_notes.txt
