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42 lines
1.7 KiB
Plaintext
42 lines
1.7 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * serverless/integrations/gpu-resources.adoc
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:_content-type: PROCEDURE
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[id="serverless-gpu-resources-kn_{context}"]
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= Specifying GPU requirements for a service
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After GPU resources are enabled for your {product-title} cluster, you can specify GPU requirements for a Knative service using the Knative (`kn`) CLI.
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.Prerequisites
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* The {ServerlessOperatorName}, Knative Serving and Knative Eventing are installed on the cluster.
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* You have installed the Knative (`kn`) CLI.
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* GPU resources are enabled for your {product-title} cluster.
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* You have created a project or have access to a project with the appropriate roles and permissions to create applications and other workloads in {product-title}.
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[NOTE]
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====
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Using NVIDIA GPU resources is not supported for IBM Z and IBM Power.
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====
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.Procedure
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. Create a Knative service and set the GPU resource requirement limit to `1` by using the `--limit nvidia.com/gpu=1` flag:
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+
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[source,terminal]
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----
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$ kn service create hello --image <service-image> --limit nvidia.com/gpu=1
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----
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+
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A GPU resource requirement limit of `1` means that the service has 1 GPU resource dedicated. Services do not share GPU resources. Any other services that require GPU resources must wait until the GPU resource is no longer in use.
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+
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A limit of 1 GPU also means that applications exceeding usage of 1 GPU resource are restricted. If a service requests more than 1 GPU resource, it is deployed on a node where the GPU resource requirements can be met.
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. Optional. For an existing service, you can change the GPU resource requirement limit to `3` by using the `--limit nvidia.com/gpu=3` flag:
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[source,terminal]
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----
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$ kn service update hello --limit nvidia.com/gpu=3
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----
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