diff options
| -rw-r--r-- | test/SWMR_UseCase_UG.txt | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/test/SWMR_UseCase_UG.txt b/test/SWMR_UseCase_UG.txt index 3b604c6..5908428 100644 --- a/test/SWMR_UseCase_UG.txt +++ b/test/SWMR_UseCase_UG.txt @@ -41,10 +41,10 @@ How to run the program: Simplest way is $ use_append_chunk - It creates a skeleton dataset (0,254,254) of shorts. Then fork off a - process, which becomes the reader process to read planes from the dataset, - while the original process continues as the writer process to append - planes onto the dataset. + It creates a skeleton dataset (0,256,256) of shorts. Then fork off + a process, which becomes the reader process to read planes from the + dataset, while the original process continues as the writer process + to append planes onto the dataset. Other possible options: @@ -58,8 +58,8 @@ How to run the program: $ use_append_chunk -f /gpfs/tmp/append_data.h5 The data file is /gpfs/tmp/append_data.h5. This allows two independent - processes in separated compute nodes to access the datafile on the shared - /gpfs file system. + processes in separated compute nodes to access the datafile on the + shared /gpfs file system. 3. -l option: launch only the reader or writer process. @@ -69,8 +69,10 @@ How to run the program: In node X, launch the writer process, which creates the data file and appends to it. In node Y, launch the read process to read the data file. + Note that you need to time the read process to start AFTER the write - process has created the skeleton data file. Otherwise, the reader will encounter errors such as data file not found. + process has created the skeleton data file. Otherwise, the reader + will encounter errors such as data file not found. 4. -s option: use SWMR file access mode or not. Default is yes. @@ -82,7 +84,8 @@ How to run the program: access. Test Shell Script: - The Use Case program is installed in the test/ directory and is compiled - as part of the make process. A test script (test_usecases.sh) is installed - in the same directory to test the use case programs. The test script is - rather basic and is more for demonstrating how to use the program. + The Use Case program is installed in the test/ directory and is + compiled as part of the make process. A test script (test_usecases.sh) + is installed in the same directory to test the use case programs. The + test script is rather basic and is more for demonstrating how to + use the program. |