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- 7. _K_n_o_w_n__P_r_o_b_l_e_m_s__a_n_d__W_o_r_k_a_r_o_u_n_d_s
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- This chapter describes the known problems and workarounds
- for the SGI MPT for Linux systems.
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- 7.1 _S_t_a_c_k__S_i_z_e__A_d_j_u_s_t_m_e_n_t_s
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- When you use the csh lllliiiimmmmiiiitttt command for adjustments of stack
- size, the adjustment does not get passed to the slave
- processes. The workaround for csh is to place the lllliiiimmmmiiiitttt
- command in your ....ccccsssshhhhrrrrcccc file, which the slave does process.
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- 7.2 _P_r_o_c_e_s_s__C_l_e_a_n_u_p
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- When a process terminates unexpectedly, the current launcher
- does not clean up other processes. If you have processes
- that continue to run on the system, kill them manually.
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- 7.3 _D_e_p_e_n_d_e_n_c_e__o_n__r_s_h__o_n__L_i_n_u_x__P_l_a_t_f_o_r_m_s
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- During job launch, the mmmmppppiiiirrrruuuunnnn command executes remote shells
- (rrrrsssshhhh) on each involved machine. For this reason, you must
- enable rrrrsssshhhh on each machine on which you intend to run MPI
- jobs. This dependence will be lifted when Array Services
- has been ported to Linux.
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- 7.4 _L_i_n_u_x__K_e_r_n_e_l__V_e_r_s_i_o_n__I_n_f_o_r_m_a_t_i_o_n
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- A problem exists with the 2.2.17 Linux kernel's virtual
- memory handling. Nodes freeze shortly after logging
- messages of the following type:
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- FFFFeeeebbbb 22222222 11117777::::44445555::::55556666 llllxxxx11112222000000001111 kkkkeeeerrrrnnnneeeellll:::: VVVVMMMM:::: ddddoooo____ttttrrrryyyy____ttttoooo____ffffrrrreeeeeeee____ppppaaaaggggeeeessss ffffaaaaiiiilllleeeedddd ffffoooorrrr mmmmppppiiiirrrruuuunnnn............
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- Upgrading to Linux 2.2.18 cures the problem.
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