One-sided Communication Research Articles

An efficient and universal parallel algorithm for high-dimensional quantum dynamics in poly-atomic reactions.

This study presents a parallel algorithm for high-dimensional quantum dynamics simulations in poly atomic reactions, integrating distributed- and shared-memory models. The distributions of the wave function and potential energy matrix across message passing interface processes are based on bundled radial and angular dimensions, with implementations featuring either two- or one-sided communication schemes. Using realistic parameters for the H + NH3 reaction, performance assessment reveals linear scalability, exceeding 90% efficiency with up to 600 processors. In addition, owing to the universal and concise structure, the algorithm demonstrates remarkable extensibility to diverse reaction systems, as demonstrated by successes with six-atom and four-atom reactions. This work establishes a robust foundation for high-dimensional dynamics studies, showcasing the algorithm's efficiency, scalability, and adaptability. The algorithm's potential as a valuable tool for unraveling quantum dynamics complexities is underscored, paving the way for future advancements in the field.

Enhancing MPI remote memory access model for distributed-memory systems through one-sided broadcast implementation

Efficiently processing vast and expanding data volumes is a pressing challenge. Traditional high-performance computers, utilizing distributed-memory architecture and a message-passing model, grapple with synchronization issues, hampering their ability to keep up with the growing demands. Remote Memory Access (RMA), often referred to as one-sided MPI communications, offers a solution by allowing a process to directly access another process’s memory, eliminating the need for message exchange and significantly boosting performance. Unfortunately, the existing MPI RMA standard lacks a collective operation interface, limiting efficiency. To overcome this constraint, we introduce an algorithm design that enables efficient parallelizable collective operations within the RMA framework. Our study focuses primarily on the advantages of collective operations, using the broadcast algorithm as a case study. Our implementations surpass traditional methods, highlighting the promising potential of this technique, as indicated by initial performance tests.

Алгоритм широковещательной рассылки на основе биномиального дерева в модели удаленного доступа к памяти

This article introduces a broadcast (one-to-all scheme) algorithm, designed to enhance the efficiency of utilizing Remote Memory Access (RMA), a one-sided communication model within the MPI standard, for parallel programming in distributed computing systems. The algorithm leverages a binomial tree structure to organize interprocess interactions, a scheme widely employed for classic collective operations within the MPI standard. With logarithmic complexity, this algorithm proves to be more efficient than linear counterparts. The article also provides analytical complexity estimates within the LogP and LogGP models. Experimental results confirm the algorithm's advantages, although the ultimate efficiency depends on several factors, including the number of processes in the communicator, data transmission size, and the performance of the interconnect.

THE INFLUENCE OF INTERNAL COMMUNICATION AND TEAMWORK ON EMPLOYEE PERFORMANCE IN THE MICROWAVE DISMANTLE PROJECT DIVISION PT. PANCA KARSA SEJAHTERA BEKASI CITY

Within PT. Panca Karsa Sejahtera, specifically the Division Project Dismantle Microwave, recurrent challenges have surfaced including one-sided communication from superiors to subordinates, fragmented team responsibilities becoming individual tasks, and dwindling work targets. Addressing these concerns, this study aims to investigate the relationship of internal communication, teamwork, and employee performance. This study was conducted in Bekasi City, which employs a quantitative approach with total sampling of 100 respondents and employed Structural Equation Modeling (SEM) using smartPLS Version 3 for analysis. Findings reveal that while internal communication positively influences employee performance, its statistical significance is limited. In contrast, teamwork significantly and positively impacts employee performance, while internal communication also significantly enhances teamwork. Effective internal communication is advised for streamlined workflow, and optimizing employee performance requires tailored skill training. Encouraging teamwork through training and active participation is recommended for improved performance. This study offers actionable insights for refining operations and elevating employee performance in the Division Project Dismantle Microwave.

Exploiting copy engines for intra-node MPI collective communication

As multi/many-core processors are widely deployed in high-performance computing systems, efficient intra-node communication becomes more important. Intra-node communication involves data copy operations to move messages from source to destination buffer. Researchers have tried to reduce the overhead of this copy operation, but the copy operation performed by CPU still wastes the CPU resources and even hinders overlapping between computation and communication. The copy engine is a hardware component that can move data between intra-node buffers without intervention of CPU. Thus, we can offload the copy operation performed by CPU onto the copy engine. In this paper, we aim at exploiting copy engines for MPI blocking collective communication, such as broadcast and gather operations. MPI is a messaging-based parallel programming model and provides point-to-point, collective, and one-sided communications. Research has been conducted to utilize the copy engine for MPI, but the support for collective communication has not yet been studied. We propose the asynchronism in blocking collective communication and the CE-CPU hybrid approach to utilize both copy engine and CPU for intra-node collective communication. The measurement results show that the proposed approach can reduce the overall execution time of a microbenchmark and a synthetic application that perform collective communication and computation up to 72% and 57%, respectively.

Two-Sided Messages Promote Openness for a Variety of Deeply Entrenched Attitudes.

Prior research showed that people holding attitudes on relatively moral topics became more open to two- rather than one-sided messages as the moral basis of their attitudes increased. Across three studies (N = 963), we extend this finding to relatively non-moral topics by demonstrating that two-sided messages can encourage people with strong attitudes indexed by various non-moral attitude strength measures to be more open to contrary positions. Study 1 demonstrated this for four indicators of attitude strength (e.g., certainty). As the strength of one's attitude increased, two-sided messages increased in relative effectiveness over one-sided communication. This was mediated by perceived appreciation for the speaker acknowledging one's view. Study 2 replicated this finding in a preregistered experiment. Study 3 conceptually replicated and extended it to people holding attitudes based on their political identity. Finally, evidence was obtained supporting perceived appreciation (rather than source evaluation) as the key driver of this interactive effect.

Assessment of nurses’ communication with department and hospital management in implementation of integrated clinical pathways in Slovenia

Abstract Introduction. An important factor in the implementation of innovations such as integrative clinical care pathways (ICPs) is supportive communication from department and hospital management. ICPs have been introduced into the clinical environment as a tool to improve the quality, safety and efficiency of health services. Aim. The study aimed to assess communication of nurses working in three ICPs and department heads and hospital managers in a typical Slovenian hospital and to identify the main reasons for this communication using a mixed methods approach. Material and methods. The cross-sectional study used a mixed descriptive quantitative method with a survey and a qualitative method with a focus group interviews of nurses working in ICPs for chronic kidney disease, stroke and total hip arthroplasty in a typical Slovenian hospital. Result and conclusion. The results showed that communication plays an important role in the implementation of ICPs and that nurses communicate worse with hospital managers than with department heads, regardless of age, gender, education and ICPs. The main reasons for poor communication in the implementation of ICPs are communication-related (weak exchange of information, lack of appropriate communication channels, one-sided and authoritative communication on the part of hospital managers) and organisational (lack of staff, disorganisation of nursing staff).

청소년의 차별경험이 자살생각에 미치는 영향에서 부모와의 소통과 학교생활의 조절된 매개효과 연구

Objectives The purpose of this study is to test the moderated mediating effects of communication with parents and school life on relations between adolescents' discrimination experiences and suicidal ideation. Methods The study analyzed the data of 6,291 middle and high school students from “2019 Survey on the Human Rights of Children and Adolescents” by the National Youth Policy Institute and set discrimination experiences as an independent variable, suicidal ideation as a dependent variable, communication with parents as a parameter, and school life as a moderating variable in the research model. Results The analysis results show that adolescents' discrimination experiences had positive effects on their suicidal ideation and that communication with parents played a mediating role between them. School life had moderating effects between discrimination experiences and communication with parents and also between discrimination experiences and communication with parents and suicidal ideation. Conclusions School life had moderated mediating effects as the positive school life of adolescents alleviated the mediating effects of discrimination experiences increasing suicidal ideation via communication with parents. Based on the findings, the study proposes to refrain from hierarchical and one-sided communication at home and school and reinforce whole person education based on connections between school and home so that adolescents can ultimately suffer less damage from discrimination experiences.

LogSC: Model-based one-sided communication performance estimation

One-sided communication (also known as remote memory access, or RMA) in the Message Passing Interface (MPI) is a communication interface that has been introduced in MPI-2 (1997) that enables new more efficient programming models. In MPI-3, some new more flexible and efficient primitives have been introduced, which makes it easier to use and more deployable.However, compared to traditional two-sided communication, little work has been performed on analyzing one-sided communication costs, which urgently requires formal analysis. The communication performance model is a formal analysis of communication and its cost. We focus on the software model, whose core idea is that the transmission can be represented as a sequence of implicit transfers and data movements. This approach is a suitable solution for concurrent communication modeling.We propose LogSC, which consists of the window cost, transmission cost, synchronization cost, and computational cost in atomic operations. In this paper, LogSC is used to model most of the operations in one-sided communication, including the put/get operation, atomic operation, and shared memory programming of MPI. We model and evaluate the parallel tests of IMB, collectives designed by combining MPI and the MPI shared memory (MPI+MPI), and the communication in the scalable universal matrix multiplication algorithm (SUMMA), which is a common matrix multiplication algorithm. Experiments show that our modeling has high accuracy, which makes up for the lack of existing models.

Third-Order Many-Body Expansion of OSV-MP2 Wave Function for Low-Order Scaling Analytical Gradient Computation.

We present a many-body expansion (MBE) formulation and implementation for efficient computation of analytical energy gradients from the orbital-specific-virtual second-order Møllet-Plesset perturbation theory (OSV-MP2) based on our earlier work (Zhou et al. J. Chem. Theory Comput. 2020, 16, 196-210). The third-order MBE(3) expansion of OSV-MP2 amplitudes and density matrices was developed to adopt the orbital-specific clustering and long-range termination schemes, which avoids term-by-term differentiations of the MBE energy bodies. We achieve better efficiency by exploiting the algorithmic sparsity that allows us to prune out insignificant fitting integrals and OSV relaxations. With these approximations, the present implementation is benchmarked on a range of molecules that show an economic scaling in the linear and quadratic regimes for computing MBE(3)-OSV-MP2 amplitude and gradient equations, respectively, and yields normal accuracy comparable to the original OSV-MP2 results. The MPI-3-based parallelism through shared memory one-sided communication is further developed for improving parallel scalability and memory accessibility by sorting the MBE(3) orbital clusters into independent tasks that are distributed on multiple processes across many nodes, supporting both global and local data locations in which selected MBE(3)-OSV-MP2 intermediates of different sizes are distinguished and accordingly placed. The accuracy and efficiency level of our MBE(3)-OSV-MP2 analytical gradient implementation is finally illustrated in two applications: we show that the subtle coordination structure differences of mechanically interlocked Cu-catenane complexes can be distinguished when tuning ligand lengths; and the porphycene molecular dynamics reveals the emergence of the vibrational signature arising from softened N-H stretching associated with hydrogen transfer, using an MP2 level of electron correlation and classical nuclei for the first time.

MPI collective communication through a single set of interfaces: A case for orthogonality

We present and discuss a unified view of and interface for collective communication in the MPI (Message-Passing Interface) standard that in a natural way exploits MPI’s orthogonality of concepts. We observe that the currently separate and different interfaces for sparse and global collective communication can be unified under the global collective communication interfaces, and at the same time lead to leaner and stronger support for stencil-like, sparse collective communication on Cartesian communicators. Our observations not only significantly reduce the number of concrete operation interfaces, but extend the functionality that can be supported by MPI while provisioning for possible future, much more wide-ranging functionality.We suggest to (re)define communicators as the sole carriers of the topological structure over processes that determines the semantics of the collective operations, and to limit the functions that can associate topological information with communicators to the functions for distributed graph topology and inter-communicator creation. As a consequence, one set of interfaces for collective communication operations (in blocking, non-blocking, and persistent variants) will suffice, thereby explicitly eliminating the MPI_Neighbor_ interfaces (in all variants) from the MPI standard. Topological structure will no longer be implied by Cartesian communicators, which in turn will have the sole role of naming processes in a (d-dimensional, Euclidean) geometric point-space. The geometric naming can be passed to the topology creating functions as part of the communicator, and guide process rank reordering and topological collective algorithm selection. We also explore ramifications of our proposal for one-sided communication.Concretely, at the price of only one essential, additional function, our suggestion eliminates 10 concrete collective function interfaces from MPI 3.1, and 15 from MPI 4.0, while providing vastly more optimization scope for the MPI library implementation. Interfaces for Cartesian communicators can likewise be simplified and/or eliminated from the MPI standard, as could the general active (post-start) synchronization mechanism for one-sided communication.

Interreligous I-Thou Encounter

The lack of communication with the wider social context and the persistent problem of one-sided communication are the challenges facing the church today. To borrow Pual Knitter’s words, this problem may lie on the fact that Korean Christianity is built on the total replacement model. Within this frame of mind, Christians listen to religious others only to replace them with Christianity. However, when we take globalization into our consideration, Korean churches need to be equipped for the new landscape in which their potential congregants live. More religious as well as cultural diversity exists today in South Korea than a generation ago. The possibility of encountering religious others as clients is wide open. When I take globalization into consideration, it becomes a more mind-boggling question as to how I can initiate I-Thou relationships with religious others. In this study, I will look into some ways to bring about transformation within the context of interreligious care and counseling based on my personal experience. What I want to accomplish through this study is to explore ways for spiritual care and counseling to be transformative, particularly in an interreligious care and counseling setting. I attempt to investigate the usefulness of the RCT model for interreligious spiritual care and counseling settings in light of the wisdom of scholars’ endeavors in interreligious dialogue. I am drawn to the RCT model as opposed to traditional Freudian theory, especially for the interreligious care and counseling setting. Here, I would like to expound how the RCT model puts an emphasis on mutuality between counselors and counselees by reconceptualizing the meaning of countertransference. Mutuality within the RCT model will be discussed with Martin Buber’s I-Thou framwork and John Gottman’s relationship theory. In addition, I will look into the necessity of interreligious counselors and those they counsel developing a differentiated self. I wish we Christian counselors and ministers could value and further celebrate the otherness of religious others in our care settings. Then, spiritual care and counseling could be life-giving and transformative.

“They See Sex as Something That’s Reproductive and Not as Something People Do for Fun”: Shortcomings in Adolescent Girls’ Sexual Socialization from Adults

Theorists suggest that adolescent girls’ sexual socialization can influence sexual risk reduction and positive sexuality development, although adolescent girls’ positive sexuality development is understudied. In this study, we applied a sex-positive framework to explore sexual socialization experiences among a sample of adolescent girls of color recruited from community-based organizations that serve youth with heightened needs ( n = 50; Mage = 15.62, range = 12–19; 58% Black/African American; 76% heterosexual; 58% sexually active). Specifically, we examined girls’ reports of messages about sexuality they have received from their teachers, parents, health care providers, and society at large. Participants completed brief, semi-structured qualitative interviews. Inductive thematic analysis was used to analyze the data. Overall, the adolescent girls described how they navigate primarily sex-negative sexual socialization messages from adults to develop positive sexual selves. Within this narrative, we found five themes: (a) Adults deliver one-sided communication that adolescent sex is inappropriate and risky; (b) Gendered messages restrict adolescent girls’ sexuality; (c) Naive adults can’t be trusted; (d) Exclusion of same-gender sexual experiences endangers adolescents who are lesbian, gay, bisexual, queer, and with other nonheterosexual orientations (LGBQ+); and (e) Messages about sexual protection can help but may still restrict adolescent girls’ sexual choices. Implications for adolescent girls’ positive sexuality development are discussed.

Islamic Identity in Contemporary Egyptian Media Discourse (2014 -2018)

Renewing religious discourse has been always a contested issue in Egypt between the ruling authorities and the Islamic entities such as Sheikh Al-Azhar, Al-Mufti, and the civilian Islamic groups. Since 2014, the ruling authorities accuse Islamic discourse as a one-sided dogmatic communication that incites violence and supports terrorism and extremism. However, the Islamic entities tend to resist these allegations by distinguishing between the fundamental resources of Islam which are the Holy Quran and verified Sunnah, and the Islamic thought which is unholy human interpretations that vary by place and time. This research explores the characteristics attributed to Islamic identity by media discourse along with the perspectives of the heads of political and religious institutions. Critical Discourse Analysis is applied to demystify the hidden agendas that the speakers inject through language. Al-Sisi calls to start a “Religious Revolution” primarily by reforming the Islamic discourse have been widely deliberated by the media and discussed within different contexts. The investigation included in this paper is the first stage of a project aims to explore the vulnerability of an ideological identity to be influenced by media and public speeches. Moreover, to gauge the potential media impact on people perception and whether the identity in its religious version shows resistance against change or not.

Defining the status “person with a disability” in Ukraine

Polumysna O. Defining the status “person with a disability” in UkraineThe article finds that the term “person with a disability” has constantly evolved, the attitude of society towards a person with a disability has been constantly changing. The nicknames that society assigned to this category of people, calling them lame, idiots, beggars, lunatics, social outsiders, the mentally retarded, the retarded, scarecrows for the healthy, samovars, etc. are considered. It was found that these names indicated only a person's disability or position in society and did not identify him as an ordinary person with his own needs and problems to be solved. In the twentieth century, only how able / incapable a person is came to the fore. At the end of the XX – beginning of the XXI century in many countries society began to pay attention not only to the medical indications of people with disabilities, but began to talk about the equality of these people in society, i.e. the implementation of the social model of disability. It is noted that the use of the words in-valid, dis-ability, mal-formation already fosters in society a negative attitude towards people with disabilities. It has been studied that the vast majority of researchers called people with disabilities “people with disabilities”, “people with special needs”, “people with disabilities”. In addition, there are sharper statements such as “abnormal student with disabilities”, “child with defects”, “special child”. After the law was passed in 2017, most scholars began using the term “person with a disability”.
 It was found that people with disabilities living in Ukraine ask not to be called autistic, cerebral palsy, downs, people with special needs, disabilities, and put a person first, and then his disability. There has been and in fact there is no consensus between society, scientists and people with disabilities themselves, as they are called, which indicates a certain imbalance and lack or one-sided communication in society.

Assessment of NVSHMEM for High Performance Computing

High Performance Computing has been a driving force behind important tasks such as scientific discovery and deep learning. It tends to achieve performance through greater concurrency and heterogeneity, where the underlying complexity of richer topologies is managed through software abstraction. In this paper, we present our assessment of NVSHMEM, an experimental programming library that supports the Partitioned Global Address Space programming model for NVIDIA GPU clusters. NVSHMEM offers several concrete advantages. One is that it reduces overheads and software complexity by allowing communication and computation to be interleaved vs. separating them into different phases. Another is that it implements the OpenSHMEM specification to provide efficient fine-grained one-sided communication, streamlining away overheads due to tag matching, wildcards, and unexpected messages which have compounding effect with increasing concurrency. It also offers ease of use by abstracting away low-level configuration operations that are required to enable low-overhead communication and direct loads and stores across processes. We evaluated NVSHMEM in terms of usability, functionality, and scalability by running two math kernels, matrix multiplication and Jacobi solver, and one full application, Horovod, on the 27,648-GPU Summit supercomputer. Our exercise of NVSHMEM at scale contributed to making NVSHMEM more robust and preparing it for production release.

Language and coordination games

I formalize the role of the self-signaling condition in guaranteeing coordination for pre-play cheap talk games with one-sided communication. I model a preexisting common language by assuming that the Receiver either ignores or follows cheap talk recommendations, but never inverts them. This assumption creates asymmetry between messages, which captures the essence of a common language. It does not rule out any outcome at hand in that every equilibrium outcome of the original game remains an equilibrium outcome in this transformed game. However, applying iterative admissibility to the transformed game yields sharp predictions. If the stage game satisfies a certain self-signaling condition, then the Sender gets her Stackelberg payoff in every iteratively admissible outcome. On the other hand, if the stage game violates a weaker self-signaling condition, miscoordination can happen in an iteratively admissible outcome.

Challenges of Communication Skills Transfer of Medical Students in the Cultural Context of Indonesia

Medical schools worldwide are promoting a student-centered and patient-centered care curriculum by using problem-based learning (PBL) strategy, emphasizing group dynamics and discussions. This approach facilitates student engagement, participation, and partnership interaction. However, in the context of the wide power-distance or the existence of socio-hierarchical gaps in Indonesia, two-way dialogue is limited. Few studies describe the one-way paternalistic communication styles between physician-patient, teacher-student, and parents-children, which can lead to less effective learning and healthcare environments. In this study, we investigated if students in an Indonesian medical school, who have been learning and practicing a partnership style of communication in a PBL curriculum for three years, are using the same style of communication with their junior peers outside the classroom. We examined the communication style between senior and new medical students, using surveys, observations, and focus group discussions, during a three-day orientation at the beginning of medical education. The results indicated that senior students used a one-sided communication style with their juniors, whereas new students expressed the need for egalitarian interaction with seniors. A classic dilemma of nature versus nurture was found and discussed. To change the traditional values, robust, constructive, and systematic formative training is key.

Специфика визуальной коммуникации в изобразительном искусстве

The article examines specificity of visual communication in the context of fine art. It is shown that visual communication is highly specific due to interaction of an art object with a subject-viewer. Two stages of visual communication are identified (the first one is associated with information transfer from an art object to a viewer; the second one - with a subject’s feedback on an art object), effect of “delayed communication” is examined; it is proved that fine art works initiate both one-sided and two-sided communication with a viewer. The conclusion is made that artworks acquire cultural meaning due to their openness for interpretation.

On classes of Bitcoin-inspired infinite-server queueing systems

We analyze the time-dependent behavior of various types of infinite-server queueing systems, where, within each system we consider, jobs interact with one another in ways that induce batch departures from the system. One example of such a queue was introduced in the recent paper of Frolkova and Mandjes (Stochastic Models, 2019) in order to model a type of one-sided communication between two users in the Bitcoin network: here we show that a time-dependent version of the distributional Little’s law can be used to study the time-dependent behavior of this model, as well as a related model where blocks are communicated to a user at a rate that is allowed to vary with time. We also show that the time-dependent behavior of analogous infinite-server queueing systems with batch arrivals and exponentially distributed services can be analyzed just as thoroughly.