Method and electronic device for application migration
The present disclosure relate to a method and an electronic device for application migration. The method includes: in response to a migration request for migrating, from a source machine to a target machine, an application executed at a source processing unit on the source machine, establishing a connection between the source machine and the target machine, the request indicating the application to be migrated, the target machine and a target processing unit to operate the application on the target machine; synchronizing a plurality of threads related to the application executed on the source processing unit; determining a resource descriptor and allocation and use conditions of a memory related to the application at the source processing unit; transmitting, via the connection, the determined resource descriptor and the allocation and use conditions of the memory to the target memory, for migration preparation performed by the target machine; and determining, based on the allocation and use conditions of the memory, the data to be migrated, for migration via the connection to the target machine.
1. A method of application migration, comprising:
receiving a request to migrate an application operating at a source processing unit on a source machine to a target machine, the migration request specifying the application to be migrated, the target machine, and a target processing unit for operating the application at the target machine;
in response to receiving the migration request, establishing a connection between the source machine and the target machine;
identifying a plurality of threads related to operation of the application at the source processing unit;
synchronizing the plurality of threads at the source machine;
determining a resource descriptor and allocation and use conditions of two or more portions of a memory of the source machine related to operation of the application at the source processing unit;
transmitting, via the connection between the source machine and the target machine, the determined resource descriptor and allocation and use conditions of the two or more portions of the memory of the source machine to the target machine for migration preparation performed by the target machine;
determining application data to be migrated to the target machine based at least in part on the allocation and use conditions of the two or more portions of the memory of the source machine;
determining whether an amount of the application data to be migrated to the target machine exceeds a designated threshold;
in response to determining that the amount of the application data to be migrated to the target machine exceeds the designated threshold, transmitting one or more portions of the application data to be migrated sufficient to begin execution of the application on the target machine; and
at least one of: performing batch transmission of one or more remaining portions of the application data to be migrated to the target machine using a backstage process;
and performing on-demand asynchronous transmission of one or more remaining portions of the application data to be migrated to the target machine.
2. The method according to claim 1 , wherein the source processing unit and the target processing unit are Graphic Processing Units (GPUs) or Field-Programmable Gate Arrays (FPGAs).
3. The method according to claim 1 , further comprising, in response to migrating the application data to the target machine, transmitting requests for the application, which are received after receiving the migration request, to the target machine via a First-in First-out (FIFO) queue.
4. The method according to claim 1 , further comprising, in response to receiving from the target machine an indication that the application has been executed on the target machine, transmitting addressing information of the target machine to a client, such that the client redirects a request for the application from the source machine to the target machine.
5. The method according to claim 1 , wherein the allocation and use conditions comprise a starting address, a length, a type and use status of a memory allocated to the application.
6. The method according to claim 5 , further comprising, in response to determining that the amount of the application data to be migrated to the target machine exceeds the designated threshold, transmitting a first portion of the application data to the target machine, the first portion of the application data comprising most recently used application data in the application data to be migrated.
7. The method according to claim 6 , further comprising, in response to receiving an indication that the application has been executed on the target machine, transmitting a second portion of the application data to the target machine, the second portion of the application data comprising remaining application data in the application data to be migrated other than the first portion of the application data.
8. The method according to claim 6 , further comprising, in response to receiving from the target machine a request for a third portion of the application data, transmitting the third portion of the application data to the target machine, the third portion of the application data comprising a portion of the application data in the application data to be migrated other than the first portion of the application data.
9. The method according to claim 1 , further comprising performing the batch transmission of one or more of the remaining portions of the application data to be migrated to the target machine using the backstage process.
10. The method according to claim 1 , further comprising performing the on-demand asynchronous transmission of one or more of the remaining portions of the application data to be migrated to the target machine.
11. The method according to claim 1 , wherein the resource descriptor comprises a context and a handle of the application at the source processing unit.
12. The method according to claim 11 , wherein the context indicates a general operating environment to be initialized on the target processing unit before operating code of the application.
13. The method according to claim 11 , wherein the handle comprises a reference object of the client visible to an application programming interface operation related to the application.
14. The method according to claim 1 , wherein the application data to be migrated comprises data stored in a subset of the two or more portions of the memory of the source machine having (i) an allocation condition of allocated and (ii) a use condition of used.
15. An apparatus comprising:
at least one processing device comprising a processor coupled to a memory;
the at least one processing device being configured:
to receive a request to migrate an application operating at a source processing unit on a source machine to a target machine, the migration request specifying the application to be migrated, the target machine, and a target processing unit for operating the application at the target machine;
in response to receiving the migration request, to establish a connection between the source machine and the target machine;
to identify a plurality of threads related to operation of the application at the source processing unit;
to synchronize the plurality of threads at the source machine;
to determine a resource descriptor and allocation and use conditions of two or more portions of a memory of the source machine related to operation of the application at the source processing unit;
to transmit, via the connection between the source machine and the target machine, the determined resource descriptor and allocation and use conditions of the two or more portions of the memory of the source machine to the target machine for migration preparation performed by the target machine;
to determine application data to be migrated to the target machine based at least in part on the allocation and use conditions of the two or more portions of the memory of the source machine;
to determine whether an amount of the application data to be migrated to the target machine exceeds a designated threshold;
in response to determining that the amount of the application data to be migrated to the target machine exceeds the designated threshold, to transmit one or more portions of the application data to be migrated sufficient to begin execution of the application on the target machine; and
to at least one of: perform batch transmission of one or more remaining portions of the application data to be migrated to the target machine using a backstage process; and perform on-demand asynchronous transmission of one or more remaining portions of the application data to be migrated to the target machine.
16. The apparatus according to claim 15 , wherein the resource descriptor comprises a context and a handle of the application at the source processing unit, the context indicating a general operating environment to be initialized on the target processing unit before operating code of the application, the handle comprising a reference object of the client visible to an application programming interface operation related to the application.
17. The apparatus according to claim 15 , wherein the application data to be migrated comprises data stored in a subset of the two or more portions of the memory of the source machine having (i) an allocation condition of allocated and (ii) a use condition of used.
18. A computer program product comprising a non-transitory processor-readable storage medium having stored therein program code of one or more software programs, wherein the program code when executed by at least one processing device causes the at least one processing device:
to receive a request to migrate an application operating at a source processing unit on a source machine to a target machine, the migration request specifying the application to be migrated, the target machine, and a target processing unit for operating the application at the target machine;
in response to receiving the migration request, to establish a connection between the source machine and the target machine;
to identify a plurality of threads related to operation of the application at the source processing unit;
to synchronize the plurality of threads at the source machine;
to determine a resource descriptor and allocation and use conditions of two or more portions of a memory of the source machine related to operation of the application at the source processing unit;
to transmit, via the connection between the source machine and the target machine, the determined resource descriptor and allocation and use conditions of the two or more portions of the memory of the source machine to the target machine for migration preparation performed by the target machine;
to determine application data to be migrated to the target machine based at least in part on the allocation and use conditions of the two or more portions of the memory of the source machine;
to determine whether an amount of the application data to be migrated to the target machine exceeds a designated threshold;
in response to determining that the amount of the application data to be migrated to the target machine exceeds the designated threshold, to transmit one or more portions of the application data to be migrated sufficient to begin execution of the application on the target machine; and
to at least one of: perform batch transmission of one or more remaining portions of the application data to be migrated to the target machine using a backstage process; and perform on-demand asynchronous transmission of one or more remaining portions of the application data to be migrated to the target machine.
19. The computer program product according to claim 18 , wherein the resource descriptor comprises a context and a handle of the application at the source processing unit, the context indicating a general operating environment to be initialized on the target processing unit before operating code of the application, the handle comprising a reference object of the client visible to an application programming interface operation related to the application.
20. The computer program product according to claim 18 , wherein the application data to be migrated comprises data stored in a subset of the two or more portions of the memory of the source machine having (i) an allocation condition of allocated and (ii) a use condition of used.