[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[gnuastro-devel] [bug #56259] Arithmetic: more time operating with int32
From: |
Raul Infante-Sainz |
Subject: |
[gnuastro-devel] [bug #56259] Arithmetic: more time operating with int32 than float32 |
Date: |
Fri, 3 May 2019 03:02:59 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:66.0) Gecko/20100101 Firefox/66.0 |
URL:
<https://savannah.gnu.org/bugs/?56259>
Summary: Arithmetic: more time operating with int32 than
float32
Project: GNU Astronomy Utilities
Submitted by: infantesainz
Submitted on: Fri 03 May 2019 07:02:57 AM UTC
Category: Arithmetic
Severity: 3 - Normal
Item Group: Addition(s)
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
_______________________________________________________
Details:
After some test in which very simple operation (subtraction of images) were
done, the results were that considering `int32' data type was more time
consumption than using `float32'.
For example:
astarithmetic im3.fits im4.fits float32 float32 -
finished in 0.111564. While
astarithmetic im3.fits im4.fits int32 int32 -
finished in 0.120998.
Note that images are different names but the size is the same.
That difference in time makes no sense and this overhead along big projects
will cause a lot of extra time in processing data.
_______________________________________________________
Reply to this item at:
<https://savannah.gnu.org/bugs/?56259>
_______________________________________________
Message sent via Savannah
https://savannah.gnu.org/
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [gnuastro-devel] [bug #56259] Arithmetic: more time operating with int32 than float32,
Raul Infante-Sainz <=