Server:

Configuration:

• NO NVMe
• NO Persistence Memory
• Server will only use SCM (tmpfs which has size of ~90G only)

• Node available with Queue Name

  Queue Name	Node Type	Max Nodes per Job (assoc'd cores)*	Max Duration	Max Jobs in Queue*	Charge Rate (per node-hour)
  skx-dev	SKX	4 nodes (192 cores)*	2 hrs	1*	1 SU
  skx-normal	SKX	128 nodes (6,144 cores)*	48 hrs	25*	1 SU
  skx-large**	SKX	868 nodes (41,664 cores)*	48 hrs	3*	1 SU

• Stampede2 SKX Compute Node Specifications

  Model:	Intel Xeon Platinum 8160 ("Skylake")
  Total cores per SKX node:	48 cores on two sockets (24 cores/socket)
  Hardware threads per core:	2
  Hardware threads per node:	48 x 2 = 96
  Clock rate:	2.1GHz nominal (1.4-3.7GHz depending on instruction set and number of active cores)
  RAM:	192GB (2.67GHz) DDR4
  Cache:	32KB L1 data cache per core; 1MB L2 per core; 33MB L3 per socket. Each socket can cache up to 57MB (sum of L2 and L3 capacity).
  Local storage:	144GB /tmp partition on a 200GB SSD. Size of /tmp partition as of 14 Nov 2017.

  DAOS Server yaml Expand source

  # single server instance per config file for now
  servers:
  -
    targets: 16                		# Confirm the number of targets
    first_core: 0              		# offset of the first core for service xstreams
    nr_xs_helpers: 1           		# count of offload/helper xstreams per target
    fabric_iface: ib0          		# map to OFI_INTERFACE=ib0
    fabric_iface_port: 31416   		# map to OFI_PORT=31416
    log_mask: ERR     		 		# map to D_LOG_MASK=ERR
    log_file: /tmp/daos_server.log 	# map to D_LOG_FILE=/tmp/server.log
  
    # Environment variable values should be supplied without encapsulating quotes.
    env_vars:                 # influence DAOS IO Server behaviour by setting env variables
    - CRT_TIMEOUT=120
    - CRT_CREDIT_EP_CTX=0
    - PSM2_MULTI_EP=1
    - CRT_CTX_SHARE_ADDR=1
    - PMEMOBJ_CONF=prefault.at_open=1;prefault.at_create=1;  # Do we need this?
    - PMEM_IS_PMEM_FORCE=1								   # Do we need this?
  
    # Storage definitions
  
    # When scm_class is set to ram, tmpfs will be used to emulate SCM.
    # The size of ram is specified by scm_size in GB units.
    scm_mount: /dev/shm   # map to -s /mnt/daos
    scm_class: ram
    scm_size: 90
  
    # When scm_class is set to dcpm, scm_list is the list of device paths for
    # AppDirect pmem namespaces (currently only one per server supported).
    # scm_class: dcpm
    # scm_list: [/dev/pmem0]
  
    # If using NVMe SSD (will write /mnt/daos/daos_nvme.conf and start I/O
    # service with -n <path>)
    # bdev_class: nvme
    # bdev_list: ["0000:81:00.0"]  # generate regular nvme.conf
  
    # If emulating NVMe SSD with malloc devices
    # bdev_class: malloc  # map to VOS_BDEV_CLASS=MALLOC
    # bdev_size: 4                # malloc size of each device in GB.
    # bdev_number: 1              # generate nvme.conf as follows:
                # [Malloc]
                #   NumberOfLuns 1
                #   LunSizeInMB 4000
  
    # If emulating NVMe SSD over kernel block device
    # bdev_class: kdev            # map to VOS_BDEV_CLASS=AIO
    # bdev_list: [/dev/sdc]       # generate nvme.conf as follows:
                # [AIO]
                #   AIO /dev/sdc AIO2
  
    # If emulating NVMe SSD with backend file
    # bdev_class: file            # map to VOS_BDEV_CLASS=AIO
    # bdev_size: 16           # file size in GB. Create file if does not exist.
    # bdev_list: [/tmp/daos-bdev] # generate nvme.conf as follows:
                # [AIO]
                #   AIO /tmp/aiofile AIO1 4096

  file Environment variables (If set any):

• 
  

  
  

Client Configuration:

Configuration:

Environment variables (If set any):