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Unable to generate entries table for device id 0

MSorokin92
Beginner
516 Views

Hello! I'm studying OpenMP on Jupiter examples. There is a simple task there:

%writefile lab/simple.cpp
//==============================================================
// Copyright © 2020 Intel Corporation
//
// SPDX-License-Identifier: MIT
// =============================================================
#include <omp.h>

#include <iostream>

constexpr int N = 16;
int main() {
  int is_cpu = true;
  int *data = static_cast<int *>(malloc(N * sizeof(int)));

  // Initialization
  for (int i = 0; i < N; i++) data[i] = i;

  #pragma omp target map(from:is_cpu) map(tofrom:data[0:N])

  {
    is_cpu = omp_is_initial_device();
#pragma omp parallel for
    for (int i = 0; i < N; i++) {
      data[i] *= 2;
    }
  }

  // Print Output
  std::cout << "Running on " << (is_cpu ? "CPU" : "GPU") << "\n";
  for (int i = 0; i < N; i++) std::cout << data[i] << "\n";

  free(data);
  return 0;
}

 

# Execute this cell to compile the code
! chmod 755 compile_c.sh; ./compile_c.sh;

compile file:

#!/bin/bash
source /opt/intel/inteloneapi/setvars.sh > /dev/null 2>&1
echo "########## Compiling"
icpx -fiopenmp -fopenmp-targets=spir64 lab/simple.cpp -o bin/simple
echo "########## Done"
# Execute this cell to run the code
! chmod 755 q; chmod 755 run.sh;if [ -x "$(command -v qsub)" ]; then ./q run.sh; else ./run.sh; fi

q file:

#!/bin/bash
#==========================================
# Copyright © 2020 Intel Corporation
#
# SPDX-License-Identifier: MIT
#==========================================
# Script to submit job in Intel(R) DevCloud
# Version: 0.7
#==========================================
if [ -z "$1" ]; then
    echo "Missing script argument, Usage: ./q run.sh"
elif [ ! -f "$1" ]; then
    echo "File $1 does not exist"
else
    echo "Job has been submitted to Intel(R) DevCloud and will execute soon."
    echo ""
    echo " If you do not see result in 60 seconds, please restart the Jupyter kernel:"
    echo " Kernel -> 'Restart Kernel and Clear All Outputs...' and then try again"
    echo ""
    script=$1
    # Remove old output files
    rm *.sh.* > /dev/null 2>&1
    # Submit job using qsub
    qsub_id=`qsub -l nodes=1:gpu:ppn=2 -d . $script`
    job_id="$(cut -d'.' -f1 <<<"$qsub_id")"
    # Print qstat output
    qstat 
    # Wait for output file to be generated and display
    echo ""
    echo -ne "Waiting for Output "
    until [ -f $script.o$job_id ]; do
        sleep 1
        echo -ne "█"
        ((timeout++))
        # Timeout if no output file generated within 60 seconds
        if [ $timeout == 60 ]; then
            echo ""
            echo ""
            echo "TimeOut 60 seconds: Job is still queued for execution, check for output file later ($script.o$job_id)"
            echo ""
            break
        fi
    done
    # Print output and error file content if exist
    if [ -n "$(find -name '*.sh.o'$job_id)" ]; then
        echo " Done⬇"
        cat $script.o$job_id
        cat $script.e$job_id
        echo "Job Completed in $timeout seconds."
        rm *.sh.*$job_id > /dev/null 2>&1
    fi
fi

run.sh file:

#!/bin/bash
/bin/echo "##" $(whoami) is running OMP_Offload Module1 -- Intro to OpenMP offload - 1 of 1 simple.cpp/f90
echo "########## Executing"
cd bin
./simple
echo "########## Done"

It was all right, but at some point it began to throw these errors:

Libomptarget error: Unable to generate entries table for device id 0.
Libomptarget error: Failed to init globals on device 0
Libomptarget error: Run with
Libomptarget error: LIBOMPTARGET_DEBUG=1 to display basic debug information.
Libomptarget error: LIBOMPTARGET_DEBUG=2 to display calls to the compute runtime.
Libomptarget error: LIBOMPTARGET_INFO=4 to dump host-target pointer mappings.
Libomptarget error: Source location information not present. Compile with -g or -gline-tables-only.
Libomptarget fatal error 1: failure of target construct while offloading is mandatory
/var/spool/torque/mom_priv/jobs/1921701.v-qsvr-1.aidevcloud.SC: line 6: 334171 Aborted                 ./simple

Any ideas what is the problem?

Labels (2)
0 Kudos
4 Replies
Abhishek81
Black Belt
481 Views

Give it a try after some time this also happened to me. I tried after some time in Dev cloud, and it worked. Inform, if the error still persists.

Abhishek81
Black Belt
448 Views

Have you tried it.Is it working?

HemanthCH_Intel
Moderator
429 Views

Hi,


We have tried to run the program on devcloud. we had successfully run the program at our end. Could you please try again on devcloud and let us if you are facing any issues?


Thanks & Regards,

Hemanth


HemanthCH_Intel
Moderator
410 Views

Hi,


We assume that your issue is resolved. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel.


Thanks & Regards,

Hemanth


Reply