testsuite/expect/test18.36

#!/usr/bin/expect
############################################################################
# Purpose: Test of SLURM functionality
#          Test of CPU affinity support.
#
# Output:  "TEST: #.#" followed by "SUCCESS" if test was successful, OR
#          "WARNING: ..." with an explanation of why the test can't be made, OR
#          "FAILURE: ..." otherwise with an explanation of the failure, OR
#          anything else indicates a failure mode that must be investigated.
############################################################################
# Copyright (C) 2005-2006 The Regents of the University of California.
# Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
# Written by Morris Jette <jette1@llnl.gov>
# UCRL-CODE-226842.
# 
# This file is part of SLURM, a resource management program.
# For details, see <http://www.llnl.gov/linux/slurm/>.
#  
# 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 test_id     "18.36"
set exit_code   0
set job_id      0
set file_prog   "test$test_id.prog"

print_header $test_id

#
# Test if task affinity support is supported.
#
set affinity 0
log_user 0
spawn $scontrol show config
expect {
	-re "task/affinity" {
		set affinity 1
		exp_continue
	}
	eof {
		wait
	}
}
log_user 1
if {$affinity == 0} {
	send_user "\nWARNING: task affinity not supported on this system\n"
	exit 0
}
send_user "\ntask affinity plugin installed\n"

#
# Build a test program to report affinity by task
#
exec $bin_rm -f $file_prog
exec $bin_make -f /dev/null $file_prog
exec $bin_chmod 700 $file_prog

#
# Create an allocation
#
set salloc_pid [spawn $salloc -N1 --verbose -t2 $bin_bash]
expect {
	-re "Granted job allocation ($number)" {
		set jobid $expect_out(1,string)
	}
	timeout {
		send_user "\nFAILURE: salloc not responding\n"
		if {$job_id != 0} {
			cancel_job $job_id
		}
		slow_kill [expr 0 - $salloc_pid]
		exit 1
	}
}

send "env |grep SLURM_JOB_CPUS_PER_NODE\n"
expect {
    -re "SLURM_JOB_CPUS_PER_NODE=($number)" {
	set available_cpus $expect_out(1,string)
    }
}

#
# Run a job step to get allocated processor count and affinity
#
expect -re $prompt
set mask 0
set task_cnt 0
send "$slaunch -n $available_cpus $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_cnt
		set mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
	}
	-re $prompt
}

#
# Run a job step with affinity
#
set expected_mask [ expr ((1 << $task_cnt) - 1) ]
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=rank $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
	}
	-re $prompt
}
if {$task_mask != $expected_mask} {
	send_user "\nFAILURE: affinity mask inconsistency ($task_mask,$mask)\n"
	set exit_code 1
}

#
# Run a job step with verbosity and all tasks on CPU 0
#
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=verbose,map_cpu:0 $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
	}
	-re $prompt
}
if {$task_mask != $task_cnt} {
	send_user "\nFAILURE: affinity mask inconsistent ($task_mask,$task_cnt)\n"
	set exit_code 1
}
set verbose_cnt 0
send "$slaunch -n $available_cpus --cpu_bind=verbose,map_cpu:0 $file_prog\n"
expect {
	-re "cpu_bind=MAP" {
		incr verbose_cnt
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
	}
	-re $prompt
}
if {$verbose_cnt != $task_cnt} {
	send_user "\nFAILURE: verbose messages count inconsisent ($verbose_cnt,$task_cnt)\n"
	set exit_code 1
}

#
# Run all tasks all bound to the same CPU by specifying a map (for each CPU)
#
set cpu_cnt 0
while {$cpu_cnt < $task_cnt} {
	set mask_sum 0
	set mask [ expr 1 << $cpu_cnt ]
	send "$slaunch -n $available_cpus --cpu_bind=map_cpu:$cpu_cnt $file_prog\n"
	expect {
		-re "TASK_ID:($number),MASK:($number)" {
			incr mask_sum $expect_out(2,string)
			exp_continue
		}
		-re "error" {
			send_user "\nFAILURE: some error occurred\n"
			set exit_code 1
			exp_continue
		}
		timeout {
			send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
			set exit_code 1
			exp_continue
		}
		-re $prompt
	}
	if {$mask_sum != $task_cnt * $mask} {
		send_user "\nFAILURE: affinity mask inconsistent ($mask_sum,$task_cnt)\n"
		set exit_code 1
	}
	incr cpu_cnt 1
}

#
# Run all tasks all bound to the same CPU by specifying a mask (for each CPU)
#
set cpu_cnt 0
while {$cpu_cnt < $task_cnt} {
	set mask_sum 0
	set mask [ expr 1 << $cpu_cnt ]
	set mstr [ dec2hex16 $mask]
	send "$slaunch -n $available_cpus --cpu_bind=mask_cpu:$mstr $file_prog\n"
	expect {
		-re "TASK_ID:($number),MASK:($number)" {
			incr mask_sum $expect_out(2,string)
			exp_continue
		}
		-re "error" {
			send_user "\nFAILURE: some error occurred\n"
			set exit_code 1
			exp_continue
		}
		timeout {
			send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
			set exit_code 1
			exp_continue
		}
		-re $prompt
	}
	if {$mask_sum != $task_cnt * $mask} {
		send_user "\nFAILURE: affinity mask inconsistent ($mask_sum,$task_cnt)\n"
		set exit_code 1
	}
	incr cpu_cnt 1
}

#
# Generate foward and reverse masks and maps
#
set cpu_cnt 0
set fwd_mask ""
set fwd_map  ""
set rev_mask ""
set rev_map  ""
set alt_mask ""
set alt_map  ""
set full_mask [ expr (1 << $task_cnt) - 1 ]
while {$cpu_cnt < $task_cnt} {
	set mask_sum 0
	set mask [ expr 1 << $cpu_cnt ]
	set mstr [ dec2hex16  $mask]
	set fwd_mask "$fwd_mask,$mstr"
	set fwd_map  "$fwd_map,$cpu_cnt"
	set rev_mask "$mstr,$rev_mask"
	set rev_map  "$cpu_cnt,$rev_map"
	if { $cpu_cnt % 2 } {
		set alt_mask "$mstr,$alt_mask"
		set alt_map  "$cpu_cnt,$alt_map"
	} else {
		set alt_mask "$alt_mask,$mstr"
		set alt_map  "$alt_map,$cpu_cnt"
	}
	if { $cpu_cnt == 0 } {
		set fwd_mask "$mstr"
		set fwd_map  "$cpu_cnt"
		set rev_mask "$mstr"
		set rev_map  "$cpu_cnt"
		set alt_mask "$mstr"
		set alt_map  "$cpu_cnt"
	}
	incr cpu_cnt 1
}

send_user "\n"
send_user "full_mask: $full_mask\n"
send_user "fwd_map:  $fwd_map\n"
send_user "fwd_mask: $fwd_mask\n"
send_user "rev_map:  $rev_map\n"
send_user "rev_mask: $rev_mask\n"
send_user "alt_map:  $alt_map\n"
send_user "alt_mask: $alt_mask\n"

#
# Run all tasks bound to a different CPU by specifying a forward map
#
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=map_cpu:$fwd_map $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
		exp_continue
	}
	-re $prompt
}
if {$task_mask != $full_mask} {
	send_user "\nFAILURE: affinity mask inconsistent ($task_mask,$full_mask)\n"
	set exit_code 1
}

#
# Run all tasks bound to a different CPU by specifying a reverse map
#
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=map_cpu:$rev_map $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
		exp_continue
	}
	-re $prompt
}
if {$task_mask != $full_mask} {
	send_user "\nFAILURE: affinity mask inconsistent ($task_mask,$full_mask)\n"
	set exit_code 1
}

#
# Run all tasks bound to a different CPU by specifying an alternating map
#
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=map_cpu:$alt_map $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
		exp_continue
	}
	-re $prompt
}
if {$task_mask != $full_mask} {
	send_user "\nFAILURE: affinity mask inconsistent ($task_mask,$full_mask)\n"
	set exit_code 1
}

#
# Run all tasks bound to a different CPU by specifying a forward mask
#
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=mask_cpu:$fwd_mask $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
		exp_continue
	}
	-re $prompt
}
if {$task_mask != $full_mask} {
	send_user "\nFAILURE: affinity mask inconsistent ($task_mask,$full_mask)\n"
	set exit_code 1
}

#
# Run all tasks bound to a different CPU by specifying a reverse mask
#
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=mask_cpu:$rev_mask $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
		exp_continue
	}
	-re $prompt
}
if {$task_mask != $full_mask} {
	send_user "\nFAILURE: affinity mask inconsistent ($task_mask,$full_mask)\n"
	set exit_code 1
}

#
# Run all tasks bound to a different CPU by specifying an alternating mask
#
set task_mask 0
send "$slaunch -n $available_cpus --cpu_bind=mask_cpu:$alt_mask $file_prog\n"
expect {
	-re "TASK_ID:($number),MASK:($number)" {
		incr task_mask $expect_out(2,string)
		exp_continue
	}
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
		exp_continue
	}
	timeout {
		send_user "\nFAILURE: slaunch not responding or failure to recognize prompt\n"
		set exit_code 1
		exp_continue
	}
	-re $prompt
}
if {$task_mask != $full_mask} {
	send_user "\nFAILURE: affinity mask inconsistent ($task_mask,$full_mask)\n"
	set exit_code 1
}

#
# Terminate the job, free the allocation
#
send "exit\n"
expect {
	-re "error" {
		send_user "\nFAILURE: some error occurred\n"
		set exit_code 1
	}
	timeout {
		send_user "\nFAILURE: salloc not responding or failure to recognize prompt\n"
		if {$job_id != 0} {
			cancel_job $job_id
		}
		slow_kill [expr 0 - $salloc_pid]
		set exit_code 1
	}
	eof {
		wait
	}
}
	
if {$exit_code == 0} {
	exec $bin_rm -f $file_prog
	send_user "\nSUCCESS\n"
} else {
	send_user "\nNOTE: This test can fail if the node configuration in slurm.conf \n"
	send_user "  (sockets, cores, threads) differs from the actual configuration\n"
}
exit $exit_code