Abstract The Masnum_wave model is widely used in ocean numerical prediction. In order to reduce the calculation time required for the prediction of the wave pattern. In the paper, we use the gprof performance monitoring tool to find the host point function of the model. Combined with the architectural features of SW26010, by adding compiler options, mutli-node scalability and OpenACC compilation guidance statement optimizes... The Masnum_wave model is widely used in ocean numerical prediction. In order to reduce the calculation time required for the prediction of the wave pattern. In the paper, we use the gprof performance monitoring tool to find the host point function of the model. Combined with the architectural features of SW26010, by adding compiler options, mutli-node scalability and OpenACC compilation guidance statement optimizes the Masnum_wave model in the code level. The experimental results show that the optimization effects is reasonable, which effectively accelerates the calculation speed of Masnum_wave calculation speed and reduces the time required for wave prediction. Read More Read Less

Abstract The functionality of the IP Multimedia Subsystem (IMS) is designed to operate on a variety of wireless access technologies and throughout the access network coverage, such as RTC, 3G, 4G and even 5G networks. In this article, we have set up an IMS registration procedure for the different networks. In addition, the SIP-based call setup mechanism based on SIP. Two processes have been... The functionality of the IP Multimedia Subsystem (IMS) is designed to operate on a variety of wireless access technologies and throughout the access network coverage, such as RTC, 3G, 4G and even 5G networks. In this article, we have set up an IMS registration procedure for the different networks. In addition, the SIP-based call setup mechanism based on SIP. Two processes have been taken into account, in the registration process and the re-registration process, which is a complementary procedure for the registration process. Our results show that the proposed framework has achieved the goal of registering user equipment in the IMS for different access networks. In addition, the proposed IMS module implanted has succeeded in playing the expected role. Read More Read Less