describe_instance_types showing GpuInfo Gpus Count 0 for Fractional vGPU VMs

[edwardchenchen]

Describe the bug

I was trying to find a cheap GPU instance when I find this
g6f.large instances are Fractional vGPU VMs
https://aws.amazon.com/ec2/instance-types/g6/

aws ec2 describe-instance-types --instance-types g6f.large

currently the count return 0

'GpuInfo': {'Gpus': [{'Name': 'L4', 'Manufacturer': 'NVIDIA', 'Count': 0, 'MemoryInfo': {'SizeInMiB': 2861}}], 'TotalGpuMemoryInMiB': 2861}

Regression Issue

• Select this option if this issue appears to be a regression.

Expected Behavior

something not 0

Current Behavior

'GpuInfo': {'Gpus': [{'Name': 'L4', 'Manufacturer': 'NVIDIA', 'Count': 0, 'MemoryInfo': {'SizeInMiB': 2861}}], 'TotalGpuMemoryInMiB': 2861}

Reproduction Steps

aws ec2 describe-instance-types --instance-types g6f.large

Possible Solution

No response

Additional Information/Context

No response

CLI version used

aws-cli/1.42.11 Python/3.12.9 Darwin/24.6.0 botocore/1.40.11

Environment details (OS name and version, etc.)

macos

[RyanFitzSimmonsAK]

Hi @edwardchenchen, thank you for reaching out. The service team is 100% aware of this issue and a fix is being worked on. I'll leave this issue open for tracking until it gets resolved.

Ticket # for internal use : P280321313

[RyanFitzSimmonsAK]

Thanks for your patience. The response containing 'Count': 0 is intended because the instance type has a fractional GPU. The service team elected to keep that response value at 0 rather than 1 to prevent features such as Auto Scaling from creating instances in workloads where 1 full GPU is required. Because this is intended behavior, I'll be closing this issue. Thank you for this bug report.

[github-actions]

This issue is now closed. Comments on closed issues are hard for our team to see.
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