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| ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||
| 0000399 | [ALGLIB] Integration | crash | always | 2011-05-11 12:23 | 2011-05-14 17:54 | ||
| Reporter | Gideon | View Status | public | ||||
| Assigned To | SergeyB | ||||||
| Priority | normal | Resolution | fixed | Platform | |||
| Status | resolved | OS | |||||
| Projection | none | OS Version | |||||
| ETA | none | Fixed in Version | 3.4.0 | Product Version | 3.3.0 | ||
| Target Version | Product Build | ||||||
| Summary | 0000399: FIXED: autogkintegrate crashes on certain function spaces for no apparent reason | ||||||
| Description | I am using alglib.autogksmooth and autogkintegrate to integrate a function f(x). f(x) is smooth and continuous. Autogkintegrate runs out of memory on certain values of x but exceeds on most other values. | ||||||
| Steps To Reproduce | |||||||
| Additional Information |
For example x=3.34 works within 255 function evaluations, x=3.35 crashes (i.e. endless function evaluations), x=3.5 works. I will send a sample app to illustrate the error. |
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| Programming language | C# | ||||||
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(0000054) SergeyB (administrator) 2011-05-14 17:54 |
Function being integrated contains small numerical noise which confuses criteria used to stop algorithm once it achieves desired accuracy. In order to fix this bug two changes were introduced: a) inner stopping condition was made less strict b) upper limit on number of iterations was imposed |
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Issue History |
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| Date Modified | Username | Field | Change |
| 2011-05-11 12:23 | Gideon | New Issue | |
| 2011-05-11 12:23 | Gideon | Programming language | => C# |
| 2011-05-11 15:04 | SergeyB | Status | new => assigned |
| 2011-05-11 15:04 | SergeyB | Assigned To | => SergeyB |
| 2011-05-14 17:54 | SergeyB | Note Added: 0000054 | |
| 2011-05-14 17:54 | SergeyB | Status | assigned => resolved |
| 2011-05-14 17:54 | SergeyB | Fixed in Version | => Next release |
| 2011-05-14 17:54 | SergeyB | Resolution | open => fixed |
| 2011-05-14 17:54 | SergeyB | Summary | autogkintegrate crashes on certain function spaces for no apparent reason => FIXED: autogkintegrate crashes on certain function spaces for no apparent reason |
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