def find_emap():
"""Search and read a perfmon event map.
When the EVENTMAP environment variable is set read that, otherwise
read the map for the current CPU.
Return an emap object that contains the events and can be queried
or None if nothing is found or the current CPU is unknown."""
el = os.getenv("EVENTMAP")
if el and el.find("/") >= 0:
try:
return EmapNativeJSON(el)
except IOError:
return None
if not el:
el = event_download.get_cpustr()
try:
emap = EmapNativeJSON(event_download.eventlist_name(el))
if emap:
return emap
except IOError:
pass
try:
event_download.download(el)
return EmapNativeJSON(event_download.eventlist_name(el))
except IOError:
pass
return None
def json_with_offcore(el, need_oc):
emap = EmapNativeJSON(event_download.eventlist_name(el, "core"))
if not emap:
return None
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc):
emap.add_offcore(oc)
elif need_oc:
return None
return emap
def json_with_offcore(el, need_oc):
emap = EmapNativeJSON(event_download.eventlist_name(el, "core"))
if not emap:
return None
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc):
emap.add_offcore(oc)
elif need_oc:
return None
return emap
def json_with_extra(el):
name = event_download.eventlist_name(el, "core")
emap = EmapNativeJSON(name)
if not emap or emap.error:
print >>sys.stderr, "parsing", name, "failed"
return None
if experimental:
try:
emap.read_events(event_download.eventlist_name(el, "core experimental"))
except IOError:
pass
add_extra_env(emap, el)
return emap
def add_extra_env(emap, el):
oc = os.getenv("OFFCORE")
if oc:
emap.add_offcore(oc)
else:
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc):
emap.add_offcore(oc)
uc = os.getenv("UNCORE")
if uc:
emap.add_uncore(uc)
else:
uc = event_download.eventlist_name(el, "uncore")
if os.path.exists(uc):
emap.add_uncore(uc)
return emap
def add_extra_env(emap, el):
oc = os.getenv("OFFCORE")
if oc:
emap.add_offcore(oc)
else:
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc):
emap.add_offcore(oc)
uc = os.getenv("UNCORE")
if uc:
emap.add_uncore(uc)
else:
uc = event_download.eventlist_name(el, "uncore")
if os.path.exists(uc):
emap.add_uncore(uc)
return emap
def add_extra_env(emap, el):
try:
oc = os.getenv("OFFCORE")
if oc:
oc = canon_emapvar(oc, "matrix")
emap.add_offcore(oc)
else:
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc):
emap.add_offcore(oc)
if experimental:
oc = event_download.eventlist_name(el, "offcore experimental")
if os.path.exists(oc):
emap.add_offcore(oc)
except IOError:
print >>sys.stderr, "Cannot open", oc
try:
uc = os.getenv("UNCORE")
if uc:
uc = canon_emapvar(uc, "uncore")
emap.add_uncore(uc)
else:
uc = event_download.eventlist_name(el, "uncore")
if os.path.exists(uc):
emap.add_uncore(uc)
if experimental:
uc = event_download.eventlist_name(el, "uncore experimental")
if os.path.exists(uc):
emap.add_uncore(uc)
except IOError:
print >>sys.stderr, "Cannot open", uc
try:
e2 = os.getenv("EVENTMAP2")
if e2:
e2 = canon_emapvar(e2, "core")
emap.read_events(e2)
# don't try to download for now
except IOError:
print >>sys.stderr, "Cannot open", e2
try:
u2 = os.getenv("UNCORE2")
if u2:
u2 = canon_emapvar(u2, "uncore")
emap.add_uncore(u2, True)
except IOError:
print >>sys.stderr, "Cannot open", u2
return emap
def add_extra_env(emap, el):
oc = os.getenv("OFFCORE")
if oc:
emap.add_offcore(oc)
else:
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc):
emap.add_offcore(oc)
uc = os.getenv("UNCORE")
if uc:
emap.add_uncore(uc)
else:
uc = event_download.eventlist_name(el, "uncore")
if os.path.exists(uc):
emap.add_uncore(uc)
e2 = os.getenv("EVENTMAP2")
if e2:
emap.read_events(e2)
# don't try to download for now
u2 = os.getenv("UNCORE2")
if u2:
emap.add_uncore(u2, True)
return emap
def add_extra_env(emap, el):
try:
oc = os.getenv("OFFCORE")
if oc:
oc = canon_emapvar(oc, "matrix")
oc = event_download.eventlist_name(el, "offcore")
emap.add_offcore(oc)
else:
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc):
emap.add_offcore(oc)
if experimental:
oc = event_download.eventlist_name(el, "offcore experimental")
if os.path.exists(oc):
emap.add_offcore(oc)
except IOError:
print("Cannot open", oc, file=sys.stderr)
try:
uc = os.getenv("UNCORE")
if uc:
uc = canon_emapvar(uc, "uncore")
uc = event_download.eventlist_name(uc, "uncore")
emap.add_uncore(uc)
else:
uc = event_download.eventlist_name(el, "uncore")
if os.path.exists(uc):
emap.add_uncore(uc)
if experimental:
uc = event_download.eventlist_name(el, "uncore experimental")
if os.path.exists(uc):
emap.add_uncore(uc)
except IOError:
print("Cannot open", uc, file=sys.stderr)
def read_map(env, typ, r):
try:
e2 = os.getenv(env)
if e2:
e2 = canon_emapvar(e2, typ)
r(e2)
# don't try to download for now
except IOError:
print("Cannot open", e2, file=sys.stderr)
read_map("EVENTMAP2", "core", lambda r: emap.read_events(r))
read_map("EVENTMAP3", "core", lambda r: emap.read_events(r))
read_map("UNCORE2", "uncore", lambda r: emap.add_uncore(r))
def json_with_extra(el):
emap = EmapNativeJSON(event_download.eventlist_name(el, "core"))
if not emap:
return None
add_extra_env(emap, el)
return emap
def json_with_extra(el):
emap = EmapNativeJSON(event_download.eventlist_name(el, "core"))
if not emap:
return None
add_extra_env(emap, el)
return emap
