Example #1
0
    /*override*/void process( job& j, void* cookie, size_type index ) {
        MyTeam& t = *static_cast<MyTeam*>(cookie);
        ASSERT( t.self_ptr==&t, "trashed cookie" );
        ASSERT( index<t.max_thread, NULL );
        ASSERT( !t.info[index].ran, "duplicate index?" );
        t.info[index].job = &j;
        t.info[index].ran = true;
        do_process(j);
        if( index==1 && nesting.level<nesting.limit ) {
            DoOneConnection<MyFactory,MyClient> doc(MaxThread,Nesting(nesting.level+1,nesting.limit),0,false);
            doc(0);
        }
#if _WIN32||_WIN64
        // test activate/deactivate
        if( t.n_thread>1 && t.n_thread%2==0 ) {
            if( nesting.level==0 ) {
                if( index&1 ) {
                    size_type target = index-1;
                    ASSERT(  target<t.max_thread, NULL );
                    // wait until t.info[target].job is defined
                    tbb::internal::spin_wait_until_eq( t.info[target].ran, true );
                    server->try_increase_load( 1, true );
                    server->reactivate( t.info[target].job );
                } else {
                    server->deactivate( &j );
                }
            }
        }
#endif /* _WIN32||_WIN64 */
        ++t.barrier;
    }
Example #2
0
void FireUpJobs( MyServer& server, MyClient& client, int max_thread, int n_extra, Checker* checker ) {
    ASSERT( max_thread>=0, NULL );
#if _WIN32||_WIN64
    ::rml::server::execution_resource_t me;
    server.register_master( me );
#endif /* _WIN32||_WIN64 */
    client.server = &server;
    MyTeam team(server,size_t(max_thread));
    MyServer::size_type n_thread = 0;
    for( int iteration=0; iteration<4; ++iteration ) {
        for( size_t i=0; i<team.max_thread; ++i )
            team.info[i].ran = false;
        switch( iteration ) {
            default:
                n_thread = int(max_thread);
                break;
            case 1:
                // No change in number of threads
                break;
            case 2:
                // Decrease number of threads.
                n_thread = int(max_thread)/2;
                break;
            // Case 3 is same code as the default, but has effect of increasing the number of threads.
        }
        team.barrier = 0;
        REMARK("client %d: server.run with n_thread=%d\n", client.client_id(), int(n_thread) );
        server.independent_thread_number_changed( n_extra );
        if( checker ) {
            // Give RML time to respond to change in number of threads.
            Harness::Sleep(1);
        }
        int n_delivered = server.try_increase_load( n_thread, StrictTeam );
        ASSERT( !StrictTeam || n_delivered==int(n_thread), "server failed to satisfy strict request" );
        if( n_delivered<0 ) {
            REMARK( "client %d: oversubscription occurred (by %d)\n", client.client_id(), -n_delivered );
            server.independent_thread_number_changed( -n_extra );
            n_delivered = 0;
        } else {
            team.n_thread = n_delivered;
            ::rml::job* job_array[JobArraySize];
            job_array[n_delivered] = (::rml::job*)intptr_t(-1);
            server.get_threads( n_delivered, &team, job_array );
            __TBB_ASSERT( job_array[n_delivered]== (::rml::job*)intptr_t(-1), NULL );
            for( int i=0; i<n_delivered; ++i ) {
                MyJob* j = static_cast<MyJob*>(job_array[i]);
                int s = j->state;
                ASSERT( s==MyJob::idle||s==MyJob::busy, NULL );
            }
            server.independent_thread_number_changed( -n_extra );
            REMARK("client %d: team size is %d\n", client.client_id(), n_delivered);
            if( checker ) {
                checker->check_number_of_threads_delivered( n_delivered, n_thread, n_extra );
            }
            // Protocol requires that master wait until workers have called "done_processing"
            while( team.barrier!=n_delivered ) {
                ASSERT( team.barrier>=0, NULL );
                ASSERT( team.barrier<=n_delivered, NULL );
                __TBB_Yield();
            }
            REMARK("client %d: team completed\n", client.client_id() );
            for( int i=0; i<n_delivered; ++i ) {
                ASSERT( team.info[i].ran, "thread on team allegedly delivered, but did not run?" );
            }
        }
        for( MyServer::size_type i=n_delivered; i<MyServer::size_type(max_thread); ++i ) {
            ASSERT( !team.info[i].ran, "thread on team ran with illegal index" );
        }
    }
#if _WIN32||_WIN64
    server.unregister_master( me );
#endif
}