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ＢＢＰ＿ＰＶＭ是为北京航空航天大学计算机系基于总线桥协议的异构可扩展并行计算机群系统ＢＢＰ＿ＳＰＣ（ｂｕｓｂｒｉｄｇｅｐｒｏｔｏｃｏｌ－ｓｃａｌａｂｌｅｐａｒａｌｅｌｃｏｍｐｕｔｅｒ）研制的ＰＶＭ版本．ＢＢＰ＿ＰＶＭ以总线桥多机互联协议的消息传递层子协议（ＢＢＰ＿ＭＰＬ）为虚拟机内各处理机间的通讯协议．ＢＢＰ＿ＭＰＬ是在ＢＢＰ可靠链路的基础上实现的精简和可靠的机间通讯协议，ＢＢＰ＿ＭＰＬ的采用有效地降低了通讯过程中报文应答、重发和动态缓冲区管理的开销．ＢＢＰ＿ＰＶＭ与ＰＶＭ３．３．４及其以上版本兼容．
BBP_PVM is a PVM version developed by Beijing University of Aeronautics and Astronautics for bus bridge protocol-scalable database (BBP_SPC) based on the bus bridge protocol. BBP_PVM uses the BBP_MPL protocol of the bus bridge multi-machine interconnection protocol as the communication protocol among the processors in the virtual machine. BBP_MPL is a streamlined and reliable inter-machine communication protocol based on the reliable link of BBP. The adoption of BBP_MPL effectively reduces the overhead of message acknowledgment, retransmission and dynamic buffer management during communication. BBP_PVM is compatible with PVM3.3.4 and above.