Setting per-user kernel parameters for parallel jobs (AIX)
Per-user kernel parameters ensure that users who run parallel jobs have sufficient resources. Use the chuser command to set appropriate values.
About this task
The following table describes the parameters
that control memory resources and recommends a value for each parameter.
Complete the following steps for each user on each processing node
in your parallel environment.
Parameter | Description | Value |
---|---|---|
fsize | The largest file that a user can create. | 2 GB minus 512 bytes (4,194,303 512-byte blocks). For no limit, specify -1. |
data | The largest data segment, or heap, that a program can have. | 128 MB (262,144 512-byte blocks) or more. For no limit, specify -1. |
stack | The largest stack that a program can have. | 32 MB (65,536 512-byte blocks) or more. |
rss | The maximum amount of physical memory that a user process can use. | 64 MB (131,072 512-byte blocks) or more. |