def monitor_timestep(jobs):
finished_jobs = []
while True:
for j in jobs:
if j in finished_jobs:
continue
try:
j_done = mig.job_finished(j["job_id"])
except migerror.MigInterfaceError, e:
log(str(e))
j_done = False
if j_done:
output_files = download_result(j)
if verify_job_output(output_files, j):
finished_jobs.append(j)
clean_up_mig_home(output_files)
else:
return 1
update(status="waiting for jobs", state=STATE_RUNNING)
if len(jobs) == len(finished_jobs):
update(status="iteration finished", state=STATE_RUNNING)
return 0 # success
time.sleep(config.POLLING_INTERVAL)
def monitor_timestep(jobs):
finished_jobs = []
while True:
for j in jobs:
if j in finished_jobs:
continue
try:
j_done = mig.job_finished(j["job_id"])
except migerror.MigInterfaceError, e:
log(str(e))
j_done = False
if j_done:
output_files = download_result(j)
if verify_job_output(output_files, j):
finished_jobs.append(j)
clean_up_mig_home(output_files)
else:
return 1
update(status="waiting for jobs", state=STATE_RUNNING)
if len(jobs) == len(finished_jobs):
update(status="iteration finished", state=STATE_RUNNING)
return 0 # success
time.sleep(config.POLLING_INTERVAL)
def verify_job_output(output, job):
for expected_output_file in job["result_files"]:
if not expected_output_file in output:
log("Could not get result file %s for job %s" %
(expected_output_file, str(job)))
return False
return True
def main_solver(matlab_sh, matlab_bin, files, number_of_jobs, first_timestep, last_timestep):
"""
The main solver file start grid jobs for every timestep.
"""
#final_step = config.FINAL_TIMESTEP
solver_data = {}
solver_data["timesteps"] = []
solver_data["pid"] = os.getpid()
solver_data["name"] = proc_name
solver_data["start_timestep"] = start_timestep
solver_data["grid_enabled"] = grid_enabled
os.mkdir(config.results_dir_name) # for storing old result
save_solver_data(proc_name, solver_data)
for t in range(first_timestep, last_timestep-1, -1): # decending from timesteps
print "starting new time step: ",t
# global timestep
timestep = str(t)#solver_data["timestep"] = t
grid_jobs = submit_jobs(matlab_sh, matlab_bin, files, number_of_jobs, timestep)
timestep_data = {"jobs" : grid_jobs, "timestep" : timestep}
solver_data = load_solver_data(proc_name)
solver_data["timesteps"].append(timestep_data)
save_solver_data(proc_name, solver_data)
update(status="starting iteration", state=STATE_RUNNING)
log("entering monitor")
exit_code = monitor_timestep(grid_jobs) # returns when jobs are done
if exit_code:
print "Monitor error."
#update(status="Error: Could not find result", state=STATE_FAILED)
return 1
postprocess(grid_jobs, timestep)
log(timestep+" done. starting next")
clean_up_mig_home(files)
clean_upload_dir()
return 0
def main_solver(matlab_sh, matlab_bin, files, number_of_jobs, first_timestep,
last_timestep):
"""
The main solver file start grid jobs for every timestep.
"""
#final_step = config.FINAL_TIMESTEP
solver_data = {}
solver_data["timesteps"] = []
solver_data["pid"] = os.getpid()
solver_data["name"] = proc_name
solver_data["start_timestep"] = start_timestep
solver_data["grid_enabled"] = grid_enabled
os.mkdir(config.results_dir_name) # for storing old result
save_solver_data(proc_name, solver_data)
for t in range(first_timestep, last_timestep - 1,
-1): # decending from timesteps
print "starting new time step: ", t
# global timestep
timestep = str(t) #solver_data["timestep"] = t
grid_jobs = submit_jobs(matlab_sh, matlab_bin, files, number_of_jobs,
timestep)
timestep_data = {"jobs": grid_jobs, "timestep": timestep}
solver_data = load_solver_data(proc_name)
solver_data["timesteps"].append(timestep_data)
save_solver_data(proc_name, solver_data)
update(status="starting iteration", state=STATE_RUNNING)
log("entering monitor")
exit_code = monitor_timestep(grid_jobs) # returns when jobs are done
if exit_code:
print "Monitor error."
#update(status="Error: Could not find result", state=STATE_FAILED)
return 1
postprocess(grid_jobs, timestep)
log(timestep + " done. starting next")
clean_up_mig_home(files)
clean_upload_dir()
return 0
def postprocess(jobs, timestep):
"""
run this code between each iterations. Merges the results using matlab code.
"""
cmd = "matlab -nodesktop -nojvm -r '%s(%i);quit();'" % (os.path.basename(
config.postprocessing_code)[:-2], num_jobs)
log("Post processing....")
print cmd
proc = subprocess.Popen(cmd,
shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
out, err = proc.communicate()
#if err:
log(" ".join([out, err]))
# move the files to the results dir to clean up our working directory
for j in jobs:
for f in j["result_files"]:
src = os.path.join(os.getcwd(), f)
new_name = "t_" + timestep + "_" + f
dst = os.path.join(os.getcwd(), config.results_dir_name, new_name)
if os.path.exists(src):
shutil.move(src, dst)
else:
log("Error: could not find result file %s after post processing."
% src)
def postprocess(jobs, timestep):
"""
run this code between each iterations. Merges the results using matlab code.
"""
cmd = "matlab -nodesktop -nojvm -r '%s(%i);quit();'" % (os.path.basename(config.postprocessing_code)[:-2], num_jobs)
log("Post processing...." )
print cmd
proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = proc.communicate()
#if err:
log(" ".join([out, err]))
# move the files to the results dir to clean up our working directory
for j in jobs:
for f in j["result_files"]:
src = os.path.join(os.getcwd(), f)
new_name = "t_" + timestep + "_" + f
dst = os.path.join(os.getcwd(), config.results_dir_name, new_name)
if os.path.exists(src):
shutil.move(src, dst)
else:
log("Error: could not find result file %s after post processing." % src)
def verify_job_output(output,job):
for expected_output_file in job["result_files"]:
if not expected_output_file in output:
log("Could not get result file %s for job %s" % (expected_output_file, str(job)))
return False
return True