App Direct Mode

In this mode, DCPMMs act as independent and persistent memory resources directly accessible by specific applications, and DRAM DIMMs act as system memory. The total displayed system memory in this mode is the total capacity of DRAM DIMMs.

Note

Before installing DCPMM, refer to Memory configuration and Configure DC Persistent Memory Module (DCPMM) for the requirements.

App Direct mode with one processor

Table 1. Memory population order in App Direct mode with one processor

D: DRAM DIMM; 16 GB, 32 GB, or 64 GB RDIMM supported P: DC Persistent Memory Module (DCPMM)
Configuration	Processor 1
	8	7	6	5	4	3	2	1
1 DCPMM and 6 RDIMMs	D	D	D		P	D	D	D
2 DCPMMs and 6 RDIMMs	D	D	D	P	P	D	D	D

Table 2. Supported DCPMM capacity in App Direct mode with one processor

Total DCPMMs	Total DIMMs	Processor Family	128 GB DCPMM	256 GB DCPMM	512 GB DCPMM
1	6	L	√	√	√
		M	√	√	√
		Other	√	√	√
2	6	L	√	√	√
		M	√	√	√
		Other	√	√

App Direct mode with two processors

Table 3. Memory population order in App Direct mode with two processors

D: DRAM DIMM; 16 GB, 32 GB, or 64 GB RDIMM supported P: DC Persistent Memory Module (DCPMM)

Configuration

Processor 2

Processor 1

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

1 DCPMM and 12 RDIMMs

D

D

D

D

D

D

D

D

D

P

D

D

D

2 DCPMMs and 12 RDIMMs

D

D

D

P

D

D

D

D

D

D

P

D

D

D

4 DCPMMs and 12 RDIMMs

D

D

D

P

P

D

D

D

D

D

D

P

P

D

D

D

Table 4. Supported DCPMM capacity in App Direct mode with two processors

Total DCPMMs	Total DIMMs	Processor Family	128 GB DCPMM	256 GB DCPMM	512 GB DCPMM
1	12	L	√	√	√
		M	√	√	√
		Other	√	√	√
2	12	L	√	√	√
		M	√	√	√
		Other	√	√	√
4	12	L	√	√	√
		M	√	√	√
		Other	√	√

Note

To install four 512 GB DCPMMs, ensure that the processor TDP is lower than or equal to 125 watts.