[dpdk-users] questions about lcore Affinity

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Hi all:
    The sum of  threads i want to bind is more than the sum of the lcores. 
Therefore, i make use ot the eal parameter  that 
-lcores=??[@cpu_set][,[@cpu_set],??]??,but it  failed. 
     L3fwd in dpdk-16.07.1 is my test example .
     Who making use of this eal parameter can give me some help?
     Any help would be appreciated.