[Antelope] Question dbdetect

[Lepolt Linkimer]

Hello,

My name is Lepolt Linkimer, I am a PhD student at the Department of
Geosciences at the University of Arizona. I am in the process of detecting
and associating local earthquakes using data from both the SIEMBRA and ESP
experiments in the Argentinean Andes. I have a total of 52 stations and the
seismicity in this region is *very high*. I am interested in detecting
possibly all local earthquakes. I have been having the following error when
running dbdetect for the entire dataset:

command line: dbdetect -v -pf /arc6/lepoltl/dbdetect.pf SIEMBRA_db
SIEMBRA_db

Attached the pf file I am using.

Error:
------------
dbdetect: Can't mmap table 'SIEMBRA_ESP_db.detection'.
        Cannot allocate memory
dbdetect: dboutdetection: dbaddv() error.
Detection OFF at 12/01/2008  16:23:09.675 for        LUNA/BHE:      BW 1.0 4
5.0 4     18.525 at 12/01/2008  16:23:06.800

dbdetect: Segmentation fault
dbdetect *fault*: Signal SIGSEGV : Segmentation fault
Abort
-----------

I am working on a Mac. My operating system:
$ uname -a
Darwin arc.geo.Arizona.EDU 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15
16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386

I am using antelope 4.10 and I believe all patches have been applied.

The error occurs when the output file "SIEMBRA_ESP_db.detection" reaches a
size of exactly 1022Mb. Is there any limit of filesize for the output? Is
this file size "normal". I have decided to run the detections by periods of
time and I ended up with 8 detection tables (the project is two years).
dbdetect works fine for me unless the output reaches 1022 Mb. I am now
running the associations (bdgrassoc) for each detection table but I am
wondering if this approach will give me complications in the future. What do
you think?

Thanks for your help!

Lepolt
-- 
PhD Candidate
Department of Geosciences
University of Arizona
http://www.geo.arizona.edu/~linkimer/
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