Source code for spinn_front_end_common.utilities.report_functions.memory_map_on_host_chip_report
from spinn_utilities.progress_bar import ProgressBar
from data_specification.constants import MAX_MEM_REGIONS
from spinn_front_end_common.utilities.exceptions import ConfigurationException
import logging
import os
import struct
logger = logging.getLogger(__name__)
MEM_MAP_SUBDIR_NAME = "memory_map_reports"
[docs]class MemoryMapOnHostChipReport(object):
""" Report on memory usage
"""
def __call__(
self, report_default_directory, dsg_targets, transceiver,
loaded_app_data_token):
""" creates a report that states where in sdram each region is
(read from machine)
:param report_default_directory: the folder where reports are written
:param dsg_targets: the map between placement and file writer
:param transceiver: the spinnMan instance
:param loaded_app_data_token: flag that app data has been loaded
:rtype: None
"""
if not loaded_app_data_token:
raise ConfigurationException(
"Needs to have loaded app data for this to work.")
directory_name = os.path.join(
report_default_directory, MEM_MAP_SUBDIR_NAME)
if not os.path.exists(directory_name):
os.makedirs(directory_name)
progress = ProgressBar(dsg_targets, "Writing memory map reports")
for (x, y, p) in progress.over(dsg_targets):
file_name = os.path.join(
directory_name,
"memory_map_from_processor"
"_{0:d}_{1:d}_{2:d}.txt".format(x, y, p))
try:
with open(file_name, "w") as f:
f.write("On chip data specification executor\n\n")
dsg_app_pointer_table_address_pointer = transceiver.\
get_user_0_register_address_from_core(x, y, p)
dsg_app_pointer_table_address = \
self._get_app_pointer_table(
transceiver, x, y,
dsg_app_pointer_table_address_pointer)
report_bytes = 4 * MAX_MEM_REGIONS
mem_map_report_data = buffer(transceiver.read_memory(
x, y, dsg_app_pointer_table_address, report_bytes))
offset = 0
for i in xrange(MAX_MEM_REGIONS):
region_address = int(struct.unpack_from(
"<I", mem_map_report_data, offset)[0])
offset += 4
f.write("Region {0:d}:\n\t start address: 0x{1:x}\n\t"
.format(i, region_address))
except IOError:
logger.error("Generate_placement_reports: Can't open file"
" {} for writing.".format(file_name))
def _get_app_pointer_table(self, txrx, x, y, table_pointer):
encoded_address = buffer(txrx.read_memory(x, y, table_pointer, 4))
return int(struct.unpack_from("<I", encoded_address)[0]) + 8