IntelĀ® MPI Library Reference Manual for Linux* OS
I_MPI_CKPOINT=<switch>
<switch> |
Checkpoint switch |
enable | yes | on | 1 |
Enables the check point function for the application started |
disable | no | off | 0 |
Disables the check point function for the application started. This is the default value |
Use this variable to turn on taking checkpoints capability. This has the same effect as the -ckpoint option. If you have set the -ckpoint option, the Hydra process manager sets the I_MPI_CKPOINT even if you do not set this environment variable.
I_MPI_CKPOINTLIB=<lib>
<lib> |
Checkpoint-Restart system library |
blcr |
Berkeley Lab Checkpoint/Restart* (BLCR) Library. This is the default value |
Use this variable to select underlying Checkpoint-Restart system library. This has the same effect as the -ckpointlib option.
I_MPI_CKPOINT_PREFIX=<dir>
<dir> |
The directory to store checkpoints. The default value is /tmp |
Use this variable to specify a directory to store checkpoints. This has the same effect as the -ckpoint-prefix option.
I_MPI_CKPOINT_TMP_PREFIX=<dir>
<dir> |
The directory to store temporary checkpoints |
Use this variable to indicate storage of temporary checkpoints while -ckpoint-prefix indicates permanent storage. This has the same effect as the -ckpoint-tmp-prefix option.
I_MPI_CKPOINT_INTERVAL=<sec>
<sec> |
Interval between consecutive checkpoints in seconds |
Use this variable to turn on timer driven checkpoints. This has the same effect as the -ckpoint-interval option.
I_MPI_CKPOINT_PRESERVE=<N>
<N> |
Maximal number of checkpoint images kept. The default value is 1 |
Use this option while running the checkpoint function to keep last <N> checkpoints to reduce checkpoint image space. This has the same effect as the -ckpoint-preserve option.
I_MPI_CKPOINT_LOGFILE=<file>
<file> |
The file keeping the trace for checkpoint activity |
Use this option for checkpoint activity monitoring. The trace is dumped into <file>. This has the same effect as the -ckpoint-logfile option.
I_MPI_CKPOINT_NUM=<N>
<N> |
Number of checkpoint image to restart an application with |
Use this option while restarting application. This has the same effect as the -ckpoint-num option.
I_MPI_RESTART=<switch>
<switch> |
Restart switch |
enable | yes | on | 1 |
Enables the restart of the application from one of the stored checkpoints. |
disable | no | off | 0 |
Disables the restart of the application. This is the default value. |
Use this variable to restart an application from one of the stored checkpoints. Using this variable has the same effect as -restart option.