Class LogFile
File for logging events from all processes
The purpose of LogFile objects is to collect short text output from
all processors into a single file. All processes can write whatever they
want at any time; the date is simply stored locally. After the file has
been closed by all processes, the data is sent to process 0, which then
writes everything to one text file, neatly separated by process rank
number.
Note that due to the intermediate storage of the data, LogFile objects
should not be used for large amounts of data. Also note that all data is
lost if a process crashes before closing the file.
|
|
| __init__(self,
filename,
communicator=None) |
|
|
|
|
close(self)
Close the file, causing the real text file to be written |
|
|
|
|
flush(self)
Write buffered data to the text file |
|
|
|
|
write(self,
string)
Write a string to the file |
|
|
__init__(self,
filename,
communicator=None)
(Constructor)
|
|
- Parameters:
filename (str) - the name of the log filecommunicator (Scientific.MPI.MPICommunicator) - the communicator in which the file is accessible. The default
value of None means to use the global world
communicator, i.e. all possible processes.
|
|
Write a string to the file
- Parameters:
string (str) - the string data
|