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https://issues.apache.org/jira/browse/FLINK-8431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16333487#comment-16333487
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ASF GitHub Bot commented on FLINK-8431:
---------------------------------------

Github user eastcirclek commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5307#discussion_r162809581
  
    --- Diff: 
flink-mesos/src/main/java/org/apache/flink/mesos/scheduler/Offer.java ---
    @@ -156,6 +164,16 @@ public long getOfferedTime() {
                return attributeMap;
        }
     
    +   @Override
    +   public Double getScalarValue(String name) {
    +           return aggregatedScalarResourceMap.getOrDefault(name, 0.0);
    +   }
    +
    +   @Override
    +   public Map<String, Double> getScalarValues() {
    +           return aggregatedScalarResourceMap;
    --- End diff --
    
    You are correct. It can cause confusion to contain an entry for `cpus` in 
`Offer::aggregatedScalarResourceMap`.  We need to return only generic resource 
types (other than `cpus`, `mem`, `network`, and `disk`) as we do in 
`LaunchableMesosWorker::getScalarRequests`. 


> Allow to specify # GPUs for TaskManager in Mesos
> ------------------------------------------------
>
>                 Key: FLINK-8431
>                 URL: https://issues.apache.org/jira/browse/FLINK-8431
>             Project: Flink
>          Issue Type: Improvement
>          Components: Cluster Management, Mesos
>            Reporter: Dongwon Kim
>            Assignee: Dongwon Kim
>            Priority: Minor
>
> Mesos provides first-class support for Nvidia GPUs [1], but Flink does not 
> exploit it when scheduling TaskManagers. If Mesos agents are configured to 
> isolate GPUs as shown in [2], TaskManagers that do not specify to use GPUs 
> cannot see GPUs at all.
> We, therefore, need to introduce a new configuration property named 
> "mesos.resourcemanager.tasks.gpus" to allow users to specify # of GPUs for 
> each TaskManager process in Mesos.
> [1] http://mesos.apache.org/documentation/latest/gpu-support/
> [2] http://mesos.apache.org/documentation/latest/gpu-support/#agent-flags



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