The UPMEM Processing-In-Memory solution consists of a pool of programmable co-processors, the DPUs, integrated in the memory.

Examples of DPU programs generated with UPMEM DPU SDK

• The UPMEM DPU SDK
• GNU make and GCC, to build the application

make to build the programs.

make clean removes the resulting builds.

The simplest way to execute the programs is to run make test. Otherwise, you may run individual tests manually by executing the binary generated in the build folder of the targeted program.

The host application generates a random file of 8MB, and schedules multiple DPUs co-processors to compute the checksum on this file. As sanity check it compares host result with the DPU results, and prints out the DPU performances:

• Total number of DPU cycles executed
• The number of DPU cycles per byte processed

Macros can be used to change the dimensions of the program:

• NR_TASKLETS set the number of tasklets used by the dpu program (default: 16)
• NR_DPUS set the number of dpus used by the host program (default: 1)

example: make test NR_TASKLETS=1 NR_DPUS=DPU_ALLOCATE_ALL

Two implementations of the Host application are provided:

• host.c using the C Host API
• host.py using the Python Host API

make test will run both implementations. Use the Makefile targets test_c or test_python to specify an implementation.

Note: because the input file is randomly generated, the checksum may differ between the two implementations.

https://sdk.upmem.com/stable/