The E-HPC Instant service has limits. Before using the service, we recommend that you understand these limits. So that you can plan accordingly, and request a quota increase if necessary. This topic describes the limits.
Quota limits
The E-HPC Instant computing service limits the resources that can be used or the number of times resources can be operated on under a single Alibaba Cloud account.
Restrictions | Quota | How to request an exception |
Total number of jobs | 10000. This is total number of jobs in non-terminal states (Initializing, Waiting, Retrying, Stopping, and Restarting) and in the Running state. | If you require a higher quota, submit a ticket. |
Number of running jobs | 2,000 | If you require a higher quota, submit a ticket. |
Total number of execution nodes | The total number of execution nodes in the Initializing, Waiting, Retrying, Stopping, Restarting, and Running states cannot exceed 10,000. | If you require a higher quota, submit a ticket. |
Number of running execution nodes | 2,000 | If you require a higher quota, submit a ticket. |
Job record retention period | 30 days | If you require a higher quota, submit a ticket. |
Job running limits
Limits | Description | How to request an exception |
Scheduling policy | Only medium scheduling is supported. | None |
Computing resources | The number of vCPUs and memory size of a single node support only fixed combinations. Custom configurations are not supported. For more information, see Available CPU and memory. | If you require a higher quota, submit a ticket. |
Disk size | 20 GiB to 2,048 GiB. The disk size need to be larger than the size of the application image. | None |
Image type | Only the following operating systems are supported:
| None |
Storage mount | Supported only on CentOS 7.x, Ubuntu, and Alibaba Cloud Linux. | None |
Available CPU and memory
To request additional specifications and ratios, submit a ticket.
vCPU | Memory (GiB) |
2 | 2, 4, 8, 12, 16 |
4 | 4, 8, 16, 24, 32 |
6 | 6, 12, 24, 36, 48 |
8 | 8, 16, 32, 48, 64 |
10 | 10, 20, 40, 60, 80 |
12 | 12, 24, 48, 72, 96 |
14 | 14, 28, 56, 84, 112 |
16 | 16, 32, 64, 96, 128 |