fix: floating point number practically causing an infinite loop

(cherry picked from commit 277a6b4a3c)

GPUSimulators/Common.py

@@ -35,6 +35,8 @@ import gc
 import netCDF4
 import json
 
+from tqdm import trange
+
 #import pycuda.compiler as cuda_compiler
 #import pycuda.gpuarray
 #import pycuda.driver as cuda
@@ -178,8 +180,8 @@ def runSimulation(simulator, simulator_args, outfile, save_times, save_var_names
         profiling_data_sim_runner["end"]["t_sim_init"] = time.time()
 
         #Start simulation loop
-        progress_printer = ProgressPrinter(save_times[-1], print_every=10)
-        for k in range(len(save_times)):
+        # progress_printer = ProgressPrinter(save_times[-1], print_every=10)
+        for k in trange(len(save_times)):
             #Get target time and step size there
             t_step = t_steps[k]
             t_end = save_times[k]
@@ -211,9 +213,9 @@ def runSimulation(simulator, simulator_args, outfile, save_times, save_var_names
             profiling_data_sim_runner["end"]["t_nc_write"] += time.time()
 
             #Write progress to screen
-            print_string = progress_printer.getPrintString(t_end)
-            if (print_string):
-                logger.debug(print_string)
+            # print_string = progress_printer.getPrintString(t_end)
+            # if (print_string):
+            #     logger.debug(print_string)
                 
         logger.debug("Simulated to t={:f} in {:d} timesteps (average dt={:f})".format(t_end, sim.simSteps(), sim.simTime() / sim.simSteps()))
         
@@ -433,58 +435,58 @@ class DataDumper(object):
         
 
 
-class ProgressPrinter(object):
-    """
-    Small helper class for 
-    """
-    def __init__(self, total_steps, print_every=5):
-        self.logger = logging.getLogger(__name__)
-        self.start = time.time()
-        self.total_steps = total_steps
-        self.print_every = print_every
-        self.next_print_time = self.print_every
-        self.last_step = 0
-        self.secs_per_iter = None
+# class ProgressPrinter(object):
+#     """
+#     Small helper class for 
+#     """
+#     def __init__(self, total_steps, print_every=5):
+#         self.logger = logging.getLogger(__name__)
+#         self.start = time.time()
+#         self.total_steps = total_steps
+#         self.print_every = print_every
+#         self.next_print_time = self.print_every
+#         self.last_step = 0
+#         self.secs_per_iter = None
         
-    def getPrintString(self, step):
-        elapsed =  time.time() - self.start
-        if (elapsed > self.next_print_time):            
-            dt = elapsed - (self.next_print_time - self.print_every)
-            dsteps = step - self.last_step
-            steps_remaining = self.total_steps - step
+#     def getPrintString(self, step):
+#         elapsed =  time.time() - self.start
+#         if (elapsed > self.next_print_time):            
+#             dt = elapsed - (self.next_print_time - self.print_every)
+#             dsteps = step - self.last_step
+#             steps_remaining = self.total_steps - step
                         
-            if (dsteps == 0):
-                return
+#             if (dsteps == 0):
+#                 return
                 
-            self.last_step = step
-            self.next_print_time = elapsed + self.print_every
+#             self.last_step = step
+#             self.next_print_time = elapsed + self.print_every
             
-            if not self.secs_per_iter:
-                self.secs_per_iter = dt / dsteps
-            self.secs_per_iter = 0.2*self.secs_per_iter + 0.8*(dt / dsteps)
+#             if not self.secs_per_iter:
+#                 self.secs_per_iter = dt / dsteps
+#             self.secs_per_iter = 0.2*self.secs_per_iter + 0.8*(dt / dsteps)
             
-            remaining_time = steps_remaining * self.secs_per_iter
+#             remaining_time = steps_remaining * self.secs_per_iter
 
-            return "{:s}. Total: {:s}, elapsed: {:s}, remaining: {:s}".format(
-                ProgressPrinter.progressBar(step, self.total_steps), 
-                ProgressPrinter.timeString(elapsed + remaining_time), 
-                ProgressPrinter.timeString(elapsed), 
-                ProgressPrinter.timeString(remaining_time))
+#             return "{:s}. Total: {:s}, elapsed: {:s}, remaining: {:s}".format(
+#                 ProgressPrinter.progressBar(step, self.total_steps), 
+#                 ProgressPrinter.timeString(elapsed + remaining_time), 
+#                 ProgressPrinter.timeString(elapsed), 
+#                 ProgressPrinter.timeString(remaining_time))
 
-    def timeString(seconds):
-        seconds = int(max(seconds, 1))
-        minutes, seconds = divmod(seconds, 60)
-        hours, minutes = divmod(minutes, 60)
-        periods = [('h', hours), ('m', minutes), ('s', seconds)]
-        time_string = ' '.join('{}{}'.format(value, name)
-                                for name, value in periods
-                                if value)
-        return time_string
+#     def timeString(seconds):
+#         seconds = int(max(seconds, 1))
+#         minutes, seconds = divmod(seconds, 60)
+#         hours, minutes = divmod(minutes, 60)
+#         periods = [('h', hours), ('m', minutes), ('s', seconds)]
+#         time_string = ' '.join('{}{}'.format(value, name)
+#                                 for name, value in periods
+#                                 if value)
+#         return time_string
 
-    def progressBar(step, total_steps, width=30):
-        progress = np.round(width * step / total_steps).astype(np.int32)
-        progressbar = "0% [" + "#"*(progress) + "="*(width-progress) + "] 100%"
-        return progressbar
+#     def progressBar(step, total_steps, width=30):
+#         progress = np.round(width * step / total_steps).astype(np.int32)
+#         progressbar = "0% [" + "#"*(progress) + "="*(width-progress) + "] 100%"
+#         return progressbar
 
 
 """

GPUSimulators/Simulator.py

@@ -25,6 +25,7 @@ import numpy as np
 import math
 import logging
 from enum import IntEnum
+from tqdm import tqdm
 
 #import pycuda.compiler as cuda_compiler
 #import pycuda.gpuarray
@@ -156,7 +157,7 @@ class BaseSimulator(object):
         self.num_substeps = num_substeps
         
         #Handle autotuning block size
-        if (self.context.autotuner):
+        if self.context.autotuner:
             peak_configuration = self.context.autotuner.get_peak_performance(self.__class__)
             block_width = int(peak_configuration["block_width"])
             block_height = int(peak_configuration["block_height"])
@@ -195,27 +196,28 @@ class BaseSimulator(object):
         Requires that the step() function is implemented in the subclasses
         """
 
-        printer = Common.ProgressPrinter(t)
+        # printer = Common.ProgressPrinter(t)
         
         t_start = self.simTime()
         t_end = t_start + t
         
         update_dt = True
-        if (dt is not None):
+        if dt is not None:
             update_dt = False
             self.dt = dt
         
-        while(self.simTime() < t_end):
+        for _ in tqdm(range(math.ceil(t_end / self.dt))):
             # Update dt every 100 timesteps and cross your fingers it works
             # for the next 100
-            if (update_dt and (self.simSteps() % 100 == 0)):
+            # TODO this is probably broken now after fixing the "infinite" loop
+            if update_dt and (self.simSteps() % 100 == 0):
                 self.dt = self.computeDt()*self.cfl_scale
 
             # Compute timestep for "this" iteration (i.e., shorten last timestep)
             current_dt = np.float32(min(self.dt, t_end-self.simTime()))
 
             # Stop if end reached (should not happen)
-            if (current_dt <= 0.0):
+            if current_dt <= 0.0:
                 self.logger.warning("Timestep size {:d} is less than or equal to zero!".format(self.simSteps()))
                 break
 
@@ -223,14 +225,16 @@ class BaseSimulator(object):
             self.step(current_dt)
 
             #Print info
-            print_string = printer.getPrintString(self.simTime() - t_start)
-            if (print_string):
-                self.logger.info("%s: %s", self, print_string)
-                try:
-                    self.check()
-                except AssertionError as e:
-                    e.args += ("Step={:d}, time={:f}".format(self.simSteps(), self.simTime()),)
-                    raise
+            # print_string = printer.getPrintString(self.simTime() - t_start)
+            # if (print_string):
+            #     self.logger.info("%s: %s", self, print_string)
+            #     try:
+            #         self.check()
+            #     except AssertionError as e:
+            #         e.args += ("Step={:d}, time={:f}".format(self.simSteps(), self.simTime()),)
+            #         raise
+
+        print("Done")
 
 
     def step(self, dt):

Jobs/job_lumi.slrum

@@ -19,18 +19,18 @@ Mydir=/project/project_4650000xx
 Myapplication=${Mydir}/FiniteVolumeGPU_hip/mpiTesting.py
 
 #modules
-ml LUMI/23.03 partition/G
+ml LUMI/24.03 partition/G
 ml lumi-container-wrapper
-ml cray-python/3.9.13.1
-ml rocm/5.2.3
+ml cray-python/3.11.7
+ml rocm/6.2.2
 
 ml craype-accel-amd-gfx90a
-ml cray-mpich/8.1.27
+ml cray-mpich/8.1.29
 
 export PATH="/project/project_4650000xx/FiniteVolumeGPU_hip/MyCondaEnv/bin:$PATH"
 
 #missing library
-export LD_LIBRARY_PATH=/opt/cray/pe/mpich/8.1.27/ofi/cray/14.0/lib-abi-mpich:$LD_LIBRARY_PATH
+export LD_LIBRARY_PATH=/opt/cray/pe/mpich/8.1.29/ofi/cray/17.0/lib-abi-mpich:$LD_LIBRARY_PATH
 
 #Binding mask
 bind_mask="0x${fe}000000000000,0x${fe}00000000000000,0x${fe}0000,0x${fe}000000,0x${fe},0x${fe}00,0x${fe}00000000,0x${fe}0000000000"

README.md

@@ -5,13 +5,13 @@ This is a HIP version of the [FiniteVolume code](https://github.com/babrodtk/Fin
 ## Setup on LUMI-G
 Here is a step-by-step guide on installing packages on LUMI-G
 
-### Step 1: Install rocm-5.2.5 with Easybuild
+### Step 1: Install rocm-5.4.6 with Easybuild
 ```
 export EBU_USER_PREFIX=/project/project_xxxxxx/EasyBuild
 ml LUMI/24.03 partition/G
 ml EasyBuild-user
 export PYTHONIOENCODING=utf-8
-eb rocm-5.2.5.eb -r
+eb rocm-5.4.6.eb -r
 ```
 
 ### Step 2: run conda-container

conda_environment_lumi.yml

@@ -5,15 +5,17 @@ channels:
 - conda-forge
 
 dependencies:
-- python=3.9.13
+- python=3.11.7
+- pip
 - numpy
 - mpi4py
 - six
 - pytools
 - netcdf4
 - scipy
+- tqdm
 - pip:
-  - hip-python==5.4.3.470.16
+  - hip-python==6.2.0.499.16
   - -i https://test.pypi.org/simple/ 
 
 

mpiTesting.py

@@ -178,7 +178,7 @@ def genSim(grid, **kwargs):
     return sim
 
 
-outfile, sim_runner_profiling_data, sim_profiling_data = Common.runSimulation(
+(outfile, sim_runner_profiling_data, sim_profiling_data) = Common.runSimulation(
     genSim, arguments, outfile, save_times, save_var_names, dt)
 
 if(args.profile):