|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
# Useful MessageLogger Configuration Changes
## Turning off the end of job statistics
This requires setting the parameter of cerr
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.cerr.enableStatistics = False
```
## Switching from cerr to cout
One needs to switch off cerr and switch on cout
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.cerr.enable = False
process.MessageLogger.cout.enable = True
```
## Writing the standard output to a file
Assuming the file you want to write is name `my_file.log` then
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.files.my_file = dict()
```
The `MessageLogger` PSet knows that all parameters of `files` must be `cms.untracked.PSet` so one can use a python `dict` to allow the default values to be used.
NOTE: The messages are still routed to cerr. If you only want messages to go to the file, also add
```python
process.MessageLogger.cerr.enable = False
```
## Have all messages from a certain level be displayed
By default the `cerr` will reject all messages below `FWKINFO` (i.e. `threshold = "FWKINFO"`) and the defaut for `INFO` is set to print no output ,i.e. `limit = 0`. So to see all `INFO` messages one would do
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.cerr.threshold = "INFO"
process.MessageLogger.cerr.INFO.limit = -1
```
All messages above `FWKINFO` by default are set to be displayed, that is they have `limit = -1`. You can explicitly set that by doing
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.cerr.WARNING = dict(limit = -1)
```
The `MessageLogger.cerr` PSet knows that all _extra_ parameter labels must be of type `cms.untracked.PSet` so one can use a python `dict` set specific parameters for that PSet and allow all other parameters to use their default default values.
## Have specific info messages be displayed
By default the `cerr` will reject all messages below `FWKINFO` (i.e. `threshold = "FWKINFO"`) and the defaut for `INFO` is set to print no output ,i.e. `limit = 0`. In order to see messages for the category 'MyCat' the threshold must be lowered and the category must be explicitly mentioned
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.cerr.threshold = "INFO"
process.MessageLogger.cerr.MyCat = dict()
```
The `MessageLogger.cerr` PSet knows that all _extra_ parameter labels must be of type `cms.untracked.PSet` so one can use a python `dict` set specific parameters for that PSet and allow all other parameters to use their default default values.
## Suppressing a particular category
In order to supporess messages for a given category, e.g. 'MyCat', the limit should be set to 0
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.MyCat = dict(limit = 0)
```
The `MessageLogger` PSet knows that all _extra_ parameter labels must be of type `cms.untracked.PSet` so one can use a python `dict` set specific parameters for that PSet and allow all other parameters to use their default default values.
## Have debug message show for a given module
By default, all `LogDebug` code is actually removed at compilation time so any messages you want to see have to be recompiled after setting the `EDM_ML_DEBUG` compilation parameter
```bash
> export USER_CXXFLAGS="-DEDM_ML_DEBUG"
> scram b ...
```
Then in the `MessageLogger` configuration you need to lower the `threshold` to `"DEBUG"` and then say you want debug messages from the module. So if your module uses the label `myModule` in the configuration, you'd specify
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.cerr.threshold = "DEBUG"
process.MessageLogger.debugModules = ["myModule"]
```
If you are not interested in a particular module but instead want to see all debug messages, you can instead set `debugModules` using `*`
```python
process.load("FWCore.MessageService.MessageLogger_cfi")
process.MessageLogger.cerr.threshold = "DEBUG"
process.MessageLogger.debugModules = ["*"]
```
|