How to install Parallel::ForkManager in Perl? - perl

Question

I am tiring to run multiple jobs in parallel by using perl script which use Parallel:ForkManager.
#!/usr/bin/perl -w
use Parallel::ForkManager;
my #make_obj = qw(
mode1_testlist
mode1_testlist1
mode1_testlist2
);
my $fm = $pm = Parallel::ForkManager-> new(3);
foreach my $obj (#make_obj) {
$fm->start and next;
print("make regression MODE=1 MODELIST=$make_obj");
$fm->finish();
}
but it throws me below error.
Can't locate Parallel/ForkManager.pm in #INC (#INC contains: /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8 .) at parallel_run.pl line 3.
BEGIN failed--compilation aborted at parallel_run.pl line 3.
I have downloaded Parallel-ForkManager-1.03.tar.gz but I don't know where to keep it I mean how to install it.
I tried perl Makefile.PL && make test && make install:
WARNING: META_MERGE is not a known parameter.
WARNING: BUILD_REQUIRES is not a known parameter.
WARNING: LICENSE is not a known parameter.
Checking if your kit is complete...
Looks good
'BUILD_REQUIRES' is not a known MakeMaker parameter name.
'LICENSE' is not a known MakeMaker parameter name.
'META_MERGE' is not a known MakeMaker parameter name.
Writing Makefile for Parallel::ForkManager
cp lib/Parallel/ForkManager.pm blib/lib/Parallel/ForkManager.pm
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e"test_harness(0,'blib/lib', 'blib/arch')" t/*.t
t/00-load.............ok 1/3 (in cleanup) Undefined subroutine
&File::Path::remove_tree called at /h/altera_dump2/vjain419/regression_flow_bck
/regression_flow/MSS1/hw/verif/top_/00e/tools/Parallel-ForkManager-1.03/blib
/lib/Parallel /ForkManager.pm line 662.
t/00-load.............ok
t/01-utf8-all.........skipped
all skipped: Need utf8::all for this test crashing on Windows
t/02-callback.........Array found where operator expected at t/02-callback.t line
21,at end of line
(Do you need to predeclare explain?)
syntax error at t/02-callback.t line 21, near "explain #out"
xecution of t/02-callback.t aborted due to compilation errors.
# Looks like your test died before it could output anything.
t/02-callback.........dubious
Test returned status 255 (wstat 65280, 0xff00)
DIED. FAILED tests 1-2
Failed 2/2 tests, 0.00% okay
t/03-callback-data....Array found where operator expected at t/03-callback-data.t line 13, at end of line
(Do you need to predeclare explain?)
syntax error at t/03-callback-data.t line 13, near "explain #out"
Execution of t/03-callback-data.t aborted due to compilation errors.
# Looks like your test died before it could output anything.
t/03-callback-data....dubious
Test returned status 255 (wstat 65280, 0xff00)
DIED. FAILED test 1
Failed 1/1 tests, 0.00% okay
Failed Test Stat Wstat Total Fail Failed List of Failed
t/02-callback.t 255 65280 2 4 200.00% 1-2
t/03-callback-data.t 255 65280 1 2 200.00% 1
1 test skipped.
Failed 2/4 test scripts, 50.00% okay. 3/6 subtests failed, 50.00% okay.
make: *** [test_dynamic] Error 255

Answer 1

Just use
cpan Parallel::ForkManager
Alternatively, execute the following command after making sure you have its dependencies (POSIX, Storable, File::Spec, File::Temp, File::Path 2.00 and Test::More 0.81_01) installed:
tar xvzf Parallel-ForkManager-1.03.tar.gz
cd Parallel-ForkManager-1.03
perl Makefile.PL && make test && make install

Answer 2

Like some of the comments on the accepted answer suggest, there can be a dependency missing. The following worked for me:
% cpan Test::More
% cpan Parallel::ForkManager