Technologies for dividing memory across socket partitions
Technologies for dividing resources across partitions include a compute sled. The compute sled is to determine partitions among sockets of the compute sled. Each socket is associated with a corresponding processor. The compute sled is also to establish a separate memory space for each determined partition, obtain, from an application executed in one of the sockets, a request to access a logical memory address, identify the partition associated with the memory access request, determine a corresponding physical memory address as a function of the identified partition and the logical memory address, and access a memory of the compute sled at the determined physical memory address. Other embodiments are also described and claimed.
1. A compute sled comprising:
a compute engine having (i) multiple processors and sockets, wherein each processor is associated with a respective socket of the compute sled and (ii) a memory, wherein the compute engine is to:
determine partitions among the sockets;
establish a separate memory space for each determined partition;
obtain, from an application executed in one of the sockets, a request to access a logical memory address;
identify the partition associated with the memory access request;
add a partition identifier to the to the memory access request;
determine a corresponding physical memory address as a function of the identified partition and the logical memory address, including multiplying the partition identifier by a predefined memory space size to determine a base physical memory address, and adding the logical address to the base physical memory address; and
access the memory at the determined physical memory address.
2. The compute sled of claim 1 , wherein to determine partitions among the sockets comprises to establish at least one separate partition for each socket.
3. The compute sled of claim 2 , wherein to establish at least one separate partition for each socket comprises to:
establish a first partition for a first set of cores in one of the processors; and
establish a second partition for a second set of cores in the same processor.
4. The compute sled of claim 3 , wherein to establish a first partition for a first set of cores in one of the processors and establish a second partition for second set of cores in the same processor comprises to establish a separate partition associated with each set of cores assigned to execute a different instance of an operating system.
5. The compute sled of claim 1 , wherein to establish a separate memory space for each determined partition comprises to map one or more I/O devices to one or more of the memory spaces.
6. The compute sled of claim 5 , wherein to map one or more I/O devices to one or more of the memory spaces comprises to exclude an I/O device from one of the memory spaces and map the I/O device to another of the memory spaces.
7. The compute sled of claim 1 , wherein the compute engine is further to assign a partition identifier to each of multiple I/O devices.
8. One or more machine-readable storage media comprising a plurality of executable computer program instructions stored thereon that, in response to being executed, cause a compute sled to:
determine partitions among sockets of the compute sled, wherein each socket is associated with a corresponding processor of the compute sled;
establish a separate memory space for each determined partition;
obtain from an application executed in one of the sockets, a request to access a logical memory address;
identify the partition associated with the memory access request;
add a partition identifier to the to the memory access request;
determine a corresponding physical memory address as a function of the identified partition and the logical memory address, including multiplying the partition identifier by a predefined memory space size to determine a base physical memory address, and adding the logical address to the base physical memory address; and
access a memory of the compute sled at the determined physical memory address.
9. The one or more machine-readable storage media of claim 8 , wherein to determine the partitions among the sockets comprises to establish at least one separate partition for each socket.
10. The one or more machine-readable storage media of claim 9 , wherein to establish at least one separate partition for each socket comprises to:
establish a first partition for a first set of cores in one of the processors; and
establish a second partition for a second set of cores in the same processor.
11. The one or more machine-readable storage media of claim 10 , wherein to establish a first partition for a first set of cores in one of the processors and establish a second partition for second set of cores in the same processor comprises to establish a separate partition associated with each set of cores assigned to execute a different instance of an operating system.
12. The one or more machine-readable storage media of claim 8 , wherein to establish a separate memory space for each determined partition comprises to map one or more I/O devices to one or more of the memory spaces.
13. A method comprising:
determining, by a compute sled, partitions among sockets of the compute sled, wherein each socket is associated with a corresponding processor of the compute sled;
establishing, by the compute sled, a separate memory space for each determined partition;
obtaining, by the compute sled, from an application executed in one of the sockets, a request to access a logical memory address;
identifying, by the compute sled, the partition associated with the memory access request;
adding a partition identifier to the to the memory access request;
determining, by the compute sled, a corresponding physical memory address as a function of the identified partition and the logical memory address, including multiplying the partition identifier by a predefined memory space size to determine a base physical memory address, and adding the logical address to the base physical memory address; and
accessing, by the compute sled, a memory of the compute sled at the determined physical memory address.
14. The method of claim 13 , wherein determining the partitions among the sockets comprises establishing at least one separate partition for each socket.
15. The method of claim 14 , wherein establishing at least one separate partition for each socket comprises:
establishing a first partition for a first set of cores in one of the processors; and
establishing a second partition for a second set of cores in the same processor.
16. The method of claim 15 , wherein establishing a first partition for a first set of cores in one of the processors and establishing a second partition for second set of cores in the same processor comprises establishing a separate partition associated with each set of cores assigned to execute a different instance of an operating system.