Bug #14085
Memory leak running LArG4 with NEST
Description
Pawel Kryczynski reports that a job running generation and simulation with some custom simulation code is able to run only up to 50 events before exhausting GPVM memory.
Associated revisions
Fixing memory leak in NEST (issue #14085)
Our crippled NEST code does still a lot of useless stuff.
Fixing memory leak in NEST (issue #14085)
Our crippled NEST code does still a lot of useless stuff.
History
#1 Updated by Gianluca Petrillo about 3 years ago
- Status changed from New to Assigned
- Assignee set to Gianluca Petrillo
#2 Updated by Gianluca Petrillo about 3 years ago
Pawel has run valgrind's massif tool on the job.
#3 Updated by Gianluca Petrillo about 3 years ago
Massif points to a problem in NEST.
NEST code in LArG4 is a mutilated version of some original NEST code taken somewhere, sometimes.
Among the mutilations it had to suffer, there is likely the deletion of a particle object, that is now never deleted and finally leaked.
#4 Updated by Gianluca Petrillo about 3 years ago
- Status changed from Assigned to Resolved
- % Done changed from 0 to 100
The free pointer has been replaced with a std::unique_ptr. No other action has been taken on the code.
The commit has been tested by Pawel, confirming the physics is unchanged and memory usage is stable even after O(1000) processed events.
The fix is merged in larsim develop branch.
#5 Updated by Gianluca Petrillo about 3 years ago
- Status changed from Resolved to Closed
Fixing memory leak in NEST (issue #14085)
Our crippled NEST code does still a lot of useless stuff.