#!/usr/bin/env expect
############################################################################
# Purpose: Test of Slurm functionality
#          Validate salloc --exclusive with -n will give all cpus on node
############################################################################
# Copyright (C) SchedMD LLC.
#
# This file is part of Slurm, a resource management program.
# For details, see <https://slurm.schedmd.com/>.
# Please also read the included file: DISCLAIMER.
#
# Slurm is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# Slurm is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along
# with Slurm; if not, write to the Free Software Foundation, Inc.
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA.
############################################################################
source ./globals

set job_id         0
set nodes          ""
set cputot         0
set scontrol_cpu   0
set sacct_cpu      0
set gpu_tot        0
set job_tres_cnt   0
set timeout        $max_job_delay

proc cleanup {} {
	global job_id

	cancel_job $job_id
}

proc check_alloc { } {
	global scontrol salloc sacct cputot scontrol_cpu sacct_cpu nodes
	global job_id number re_word_str

	set node_name [get_job_param $job_id NodeList]

	# Get number of CPUs from scontrol show job
	set scontrol_cpu [get_job_param $job_id NumCPUs]
	if {$scontrol_cpu == 0} {
		fail "Number of cpus is invalid"
	}

	# Wait for sacct to populate the job completion record
	wait_for_job_acct -fail $job_id end

	# Get number of allocated CPUs from sacct
	set sacct_cpu [string trim [run_command_output -fail "$sacct --job=$job_id --allocation --format AllocCPUS --noheader"]]
	if {$sacct_cpu == 0} {
		fail "Number of cpus is invalid"
	}

	# Get total number of CPUs from scontrol show node
	set cputot [get_node_param $node_name CPUTot]

	subtest {$cputot == $scontrol_cpu} "Verify used cpus reported by scontrol" "scontrol reported $scontrol_cpu cpus were used by job $job_id when it should have used $cputot cpus"
	subtest {$cputot == $sacct_cpu} "Verify used cpus reported by sacct" "sacct reported $sacct_cpu cpus were used by job $job_id when it should have used $cputot cpus"
}

if {[get_config_param "AccountingStorageType"] ne "accounting_storage/slurmdbd"} {
	skip "Test invalid without slurmdbd"
}

set node_name [get_nodes_by_request "--gres=gpu:2 -n1 -t1"]
if { [llength $node_name] != 1 } {
	skip "This test need to be able to submit jobs with at least --gres=gpu:2"
}
if {![param_contains [get_config_param "AccountingStorageTRES"] "gres/gpu"]} {
	skip "This test requires AccountingStorageTRES=gres/gpu"
}

# Get the total number of GPUs in the test node
set gres_node [get_node_param $node_name "Gres"]
set gpu_tot   [dict get [count_gres $gres_node] "gpu"]

spawn $salloc -t1 -n1 --exclusive $srun -l $bin_printenv SLURMD_NODENAME
expect {
	-re "Granted job allocation ($number)" {
		set job_id $expect_out(1,string)
		exp_continue
	}
	-re "($number): ($re_word_str)" {
		set nodes $expect_out(2,string)
		exp_continue
	}
	timeout {
		fail "salloc is not responding"
	}
	eof {
		wait
	}
}

wait_for_job -fail $job_id DONE
check_alloc

spawn $salloc -t1 -n1 --mem=100 --exclusive $srun -l $bin_printenv SLURMD_NODENAME
expect {
	-re "Granted job allocation ($number)" {
		set job_id $expect_out(1,string)
		exp_continue
	}
	-re "($number): ($re_word_str)" {
		set nodes $expect_out(2,string)
		exp_continue
	}
	timeout {
		fail "salloc is not responding"
	}
	eof {
		wait
	}
}

wait_for_job -fail $job_id DONE
check_alloc

#
# Verify that all GPUs and other GRES are allocated with the --exclusive flag
#
set job_id 0

spawn $salloc -t1 -n1 -w $node_name --gres=gpu --exclusive $srun -l $bin_printenv SLURMD_NODENAME
expect {
	-re "Granted job allocation ($number)" {
		set job_id $expect_out(1,string)
		exp_continue
	}
	timeout {
		fail "salloc not responding"
	}
	eof {
		wait
	}
}

# Check all GRES of the node were allocated on the job
check_exclusive_gres $job_id $node_name