SGI Varsity Update 1998 August

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Text File | 1998-07-29 | 10KB | 396 lines

- 1 - 7.2.1 MIPSpro Fortran 90 Front End Release Notes - 2 - 6. _K_n_o_w_n__B_u_g_s This chapter briefly describes the major bugs that are known to exist in this release. Some of the headings are followed by a Silicon Graphics incident report number. +o Patch 2759 requirement. While not a bug, this is a reminder that you must install ftn_eoe_sw and ftn_eoe_sw64 (for 64-bit development) from patchSG0002759. If you don't you will see the following message when compiling and linking: %f90 test.f ld32: FATAL 9: I/O error (-lfortran): No such file or directory Installation of the above mentioned subsystems from patchSG002759 will eliminate the problem NOTE: Patch 2759 contains both ftn77_eoe and ftn_eoe subsystems. One set of these subsystems is marked as installable (NA) while the other is marked as not installable (NX). When installing patch 2759 on the 7.2.1 and 7.2 compiler runtimes containing ftn_eoe, the ftn77_eoe subsystems are displayed as not installable (NX). When installing patch 2759 on earlier compilers runtimes containing ftn77_eoe, the ftn_eoe subsystems are displayed as not installable (NX). +o The compiler produces incorrect code in the case where an OPTIONAL dummy argument is used as an optional argument to an intrinsic fuction, and the corresponding actual argument is not present. This bug manifests itself as a segmentation fault at run-time (Bug 707608). The example below illustrates the bug: - 3 - program bug707608 character*10::ch = 'abcdeabcde' call printindex(ch,'c',.false.) ! Works correctly call printindex(ch,'c') ! Run-time segmentation fault contains subroutine printindex(ch,c,back) character*(*) ch,c logical,optional::back print *,index(ch,c,back) end subroutine end +o The Workshop debugger (cvd) and dbx will not display assumed shape arrays or pointers of kind(1) or kind(2) and integer or logical type. The stride between elements is computed incorrectly. In general it is recommended that dbx be used to debug Fortran 90 programs. +o The compiler incorrectly emits debugging information for the PROGRAM statement. For example: PROGRAM TEST print *,'hi' END One cannot set a breakpoint in TEST. Set a breakpoint in MAIN__ instead. 6.1 _K_n_o_w_n__P_r_o_b_l_e_m_s__(_L_i_c_e_n_s_i_n_g_) +o The MIPSpro F90 compiler will abort if the license file directory (/var/flexlm) contains a cycle formed by symbolic links. For example: %ls -l /var/flexlm lrwxr-xr-x 1 root sys 1 Mar 13 1996 license -> . -rw-r--r-- 1 root sys 1162 Aug 20 17:09 license.dat %f90 foo.f Bus error (core dumped) The solution is to remove the symbolic link that forms the cycle. - 4 - +o Overloaded use of LM_LICENSE_FILE Although this is not a bug, compiler users often have environments which specify the LM_LICENSE_FILE variable with a license file that contains licenses for other software. If, however, the compiler licenses are not installed in this alternate license file, compilations will generate the warning message illustrated below. The remedy is to either not use the LM_LICENSE_FILE variable or to set it to its old value followed by a colon (:) and the file that contains the compiler licenses. - 5 - For Example: %echo $LM_LICENSE_FILE /usr/john_doe/license.dat %f90 foo.f No such feature exists (-5,116:2) No such file or directory The MIPSpro Fortran 90 Compiler (license FEATURE string = f90) requires a license password. For license installation and trouble shooting information visit the web page: http://www.sgi.com/Support/Licensing/install_docs.html To obtain a Permanent license (proof of purchase required) or an Evaluation license please visit our license request web page: http://www.sgi.com/Products/license.html or send a blank email message to: license@sgi.com In North America, Silicon Graphics' customers may request Permanent licenses by sending a facsimile to: (650) 932-0537 or by calling our technical support hotline 1-800-800-4SGI If you are Outside of North America or you are not a Silicon Graphics support customer then contact your local support provider. %setenv LM_LICENSE_FILE /usr/john_doe/license.dat:/var/flexlm/license.dat %echo $LM_LICENSE_FILE /usr/john_doe/license.dat:/var/flexlm/license.dat %f90 foo.f % +o Cryptic warning message from licensing. - 6 - The first line of a warning message that occurs when a license file exists under /var/flexlm but does not contain the compiler license can be misleading. For completeness the following example illustrates the entire output when a license file exists, but a license is not installed: %f90 foo.f No such feature exists (-5,116) The MIPSpro Fortran 90 Compiler (license FEATURE string = f90) requires a license password. For license installation and trouble shooting information visit the web page: http://www.sgi.com/Support/Licensing/install_docs.html To obtain a Permanent license (proof of purchase required) or an Evaluation license please visit our license request web page: http://www.sgi.com/Products/license.html or send a blank email message to: license@sgi.com In North America, Silicon Graphics' customers may request Permanent licenses by sending a facsimile to: (650) 932-0537 or by calling our technical support hotline 1-800-800-4SGI If you are Outside of North America or you are not a Silicon Graphics support customer then contact your local support provider.