| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 707 |
4683d 07h |
werner |
/trunk/src/ |
rework of the random numbers in iland.
Now, many (200000) random numbers are precalculated using a given algorithm (there are three or four choices), then the drandom() etc functions read from this array. After some rotations, the numbers are renewed. The point is: this is now reentrant, so the per-thread storage of MTRand objects is obsolete. |
|
| 706 |
4684d 00h |
werner |
/trunk/src/ |
some performance tests with random number generators. Results so far are not too indicative. |
|
| 705 |
4684d 03h |
werner |
/trunk/src/ |
series of performance tests / modifications.
Using "valgrind" on the linux virtual machine, some performance
measurements were made.
Some candidates for optimization were tested. (1) the applyLIP()
function (about 30% of total run time in runYear()): here several
inlining options were tested; testing the value of the stamp before
using it (in order to omit the other steps) prooved to be slower than
unsing all stamp values.
(2) the random number generator; here the random number generation is
about 5% of the total run time; the commit contains two/three other
variants. |
|
| 671 |
4735d 07h |
werner |
/trunk/src/ |
Necessary changes for GPL licence (i.e. headers in all source files) |
|
| 639 |
4896d 04h |
werner |
/ |
move current content to the "trunk" |
|
| 615 |
4955d 07h |
werner |
/src/ |
removed windows specific _isnan() calls |
|
| 443 |
5214d 11h |
werner |
/src/ |
problems with multihtreading and the random generator. Crashes revealed that the MersenneTwister class is not multithreadable; The solution now is to have for each Thread in the thread pool one random number generator. This removes the crashes, but makes changes to the code necessary. |
|
| 431 |
5242d 00h |
werner |
/src/ |
included the logLevel-Functions at several locations in the source code.
added a option to only display debug messages in the DebugTimer destructor when elapsed time is longer than one millisecond. |
|
| 349 |
5336d 08h |
werner |
/src/ |
tested behavior of irandom(from, to). It is clear now, that results are [from, to], i.e. the upper value is also returned. Be careful when using for querying an index for a list/vector. |
|
| 289 |
5461d 20h |
werner |
/src/ |
random - things: added the Picus random-helper-classes (RandomIndex, CustomRandomPDF, ...).
added a 3rd party Mersenne-Twister-Random-Generator (added a 3rdparty) directory. |
|
| 287 |
5462d 19h |
werner |
/src/ |
Tree initialization (random variant). works almost... |
|
| 285 |
5464d 15h |
werner |
/src/core/ |
loading of the landscape. added "areaMask.imageFile" to "world" in xml file. This loads a image mask that establishes area that are inside and outside the project area respectively. |
|
| 216 |
5483d 22h |
werner |
/src/ |
created a more sophisticated management routine using javascript. |
|
| 210 |
5485d 04h |
werner |
/src/ |
class "Sun", added "site"-varaibles to the project file. |
|
| 187 |
5491d 14h |
iland |
/src/ |
wow. Ressource is correctly spelled as Resource. I jerk. |
|
| 186 |
5491d 20h |
werner |
/src/ |
management 1st version running |
|
| 157 |
5502d 20h |
werner |
/src/ |
cleaning of memory after trees died; this had some impacts on AllTreeIterator and some other places.
added a "Tests" class to combine some simple tests. |
|
| 130 |
5507d 22h |
Werner |
/src/ |
moved debugDataTable to GlobalSettings... |
|
| 117 |
5513d 19h |
Werner |
/src/ |
new debug macros (which are compiled to NOOP in release mode) |
|
| 102 |
5516d 02h |
Werner |
/src/ |
* added a global XML-node of the project file to GlobalSettings (each setup() routine has access to that)
* loading of stamps for each species. |
|