partitioned execution: pass process rank to LWK

Cherry-pick of d2d134d5e6a4b16a34d55d31b14614a2a91ecf47

Conflicts:
	kernel/include/process.h

kernel/host.c

@@ -482,6 +482,7 @@ static int process_msg_prepare_process(unsigned long rphys)
 	proc->mpol_flags = pn->mpol_flags;
 	proc->mpol_threshold = pn->mpol_threshold;
 	proc->nr_processes = pn->nr_processes;
+	proc->process_rank = pn->process_rank;
 	proc->heap_extension = pn->heap_extension;
 
 	/* Update NUMA binding policy if requested */

kernel/include/process.h

@@ -570,6 +570,7 @@ struct process {
 	unsigned long profile_elapsed_ts;
 #endif // PROFILE_ENABLE
 	int nr_processes; /* For partitioned execution */
+	int process_rank; /* Rank in partition */
 };
 
 /*

kernel/include/syscall.h

@@ -199,6 +199,7 @@ struct program_load_desc {
 	long stack_premap;
 	unsigned long mpol_bind_mask;
 	int nr_processes;
+	int process_rank;
 	char shell_path[SHELL_PATH_MAX_LEN];
 	__cpu_set_unit cpu_set[PLD_CPU_SET_SIZE];
 	int profile;